Temperatures were rising inside the plane. Eighty-eight Brazilian deportees, most of them handcuffed and shackled, were getting restless on Friday under the watch of U.S. immigration agents. The passenger jet, dealing with repeated technical problems, was stuck on the tarmac in a sweltering city in the Amazon rainforest.

Then the air conditioning broke — again.

There were demands to stay seated, shoving, shouting, children crying, passengers fainting and agents blocking exits, according to interviews with six of the deportees aboard the flight. Finally, passengers pulled the levers to release two emergency exits, and shackled men poured out onto the plane’s wing, shouting for help.

Brazil’s federal police quickly arrived and, after a brief standoff, told the U.S. Immigration and Customs Enforcement agents to release the deportees, though they had not yet reached their scheduled destination.

President Luiz Inácio Lula da Silva ordered a Brazilian Air Force aircraft to pick up the deportees and take them the rest of the way. His government’s ministers then publicly slammed the Trump administration’s handling of the deportees as “unacceptable” and “degrading.”

It was those complaints about the Brazilian flight that President Gustavo Petro of Colombia was replying to on social media when he announced Sunday that his government had turned away two deportation flights from the United States. That set off dueling threats of tariffs between the United States and Colombia that ultimately ended in Mr. Petro backing down.

The diplomatic dust-up over the deportation flights to Brazil and Colombia marked a turbulent first weekend for President Trump’s hard-line policy to deport millions of undocumented immigrants.

The pushback from two leftist Latin American governments revealed the simmering discontent across the region over President Trump’s vilification of its migrants as hardened criminals threatening the fabric of the United States.

On Monday, Mr. Trump said of deportees that “every one of them is either a murderer, a drug lord, a kingpin of some kind, a head of the mob, or a gang member.” The head of Colombia’s migration authority said that in reality, none of the deportees who arrived on two flights to Bogotá on Tuesday had criminal records.

Both the Colombian and Brazilian governments posted online thinly veiled messages to Mr. Trump, showing their citizens returning home and noting that they deserve respect. “They are free and dignified, and they are in their homeland where they are loved,” Mr. Petro wrote on Tuesday.

The Pew Research Center estimated there were 11 million undocumented immigrants in the United States in 2022, but more recent estimates put the population at almost 14 million. This includes around 4 million Mexicans, 2.1 million Central Americans, 230,000 Brazilians and 190,000 Colombians.

Mr. Petro had initially turned away the deportation flights because they were operated by the U.S. military, a recent change under the Trump administration. It was Colombian military aircraft that flew the Colombian deportees home on Tuesday. Mexico is not yet known to have received any deportation flights on military planes.

The Brazilians were flown on a commercial charter. The Brazilian government summoned the top American diplomat on Monday to discuss the conditions of that flight. The government has repeatedly asked the U.S. government to shackle deportees only if they pose a threat, including in a 2022 call between Brazil’s foreign minister and then-Secretary of State Antony Blinken, according to a summary of Brazilian efforts detailed in a 2022 government document.

U.S. officials have largely ignored those requests, according to Brazilian officials and academics who track the issue. The U.S. government has deported about 7,700 Brazilians on roughly 95 flights since 2020, according to Brazilian officials. On many of those flights, ICE agents have chained Brazilian deportees at the hands and feet, officials said.

Yet Friday’s deportation flight to Brazil — the first of Mr. Trump’s new term — was also the first to draw such public backlash from the Brazilian government. The difference on Friday, officials and passengers said, was the condition of the plane and the rough handling of the deportees by ICE agents.

ICE did not respond to a request for comment.

For many of the Brazilian deportees, the journey began weeks ago, with long bus rides across the United States — from California, Georgia, Arizona and Texas — to a federal immigration center in Alexandria, Louisiana. The men spent those rides handcuffed, sometimes for days.

In the early morning hours on Friday, ICE agents filled the passenger jet with the deportees, putting dozens of shackled men in the rear and women and children, who were not handcuffed, in the front, the deportees said.

The flight, operated by a charter airline, GlobalX Air, had problems from the start. The passengers said that on first attempt, the plane struggled to take off. After a mechanic worked on a turbine, it departed, but passengers were uneasy.

“They started to question: If something happens, how are you going to take the shackles off 80 people?” said Luiz Campos, 35, one of the Brazilian deportees, who was on the flight after spending six weeks in Texas detention centers. “‘Please, take off these chains,’” he recalled people asking. “They said, ‘No. It’s protocol. It’s always like this.’”

Tensions increased hours later during a refueling stop in Panama. Again the plane struggled to take off, and this time, three passengers described seeing smoke come from an engine on the wing. The incident also caused the air conditioning to stop working, they said, and the plane quickly became a sauna in the tropical heat.

Eventually the air conditioning was restored and the plane took off again. Hours later, it landed in Manaus, the largest city in the Brazilian Amazon. The flight was scheduled to finish in Belo Horizonte, Brazil, a city 1,600 miles to the south. Brazil’s federal police said the plane landed because of a technical issue.

GlobalX Air and ICE did not respond to requests for comment.

In Manaus, the plane then struggled to take off for a third time, again with apparent engine issues, passengers said. And then, again, the air stopped flowing inside the cabin.

“Desperation began to take hold. To be honest, I didn’t think I’d make it home alive,” said Luiz Antônio Rodrigues Santos, 21, one of the deportees. He said his asthma began to kick in and he struggled to breathe, so ICE agents brought him to the front of the plane and poured water on his head. “The kids started crying, the parents were screaming, desperate,” he said. “That’s when we decided to do something.”

Mr. Santos and other deportees said that in the muggy cabin, the shackled men began pushing their way up the aisles, physically pressing up against ICE agents standing in the way. Agents and passengers shouted and pushed one another, and several deportees said they were struck. Then some passengers opened the emergency exits.

Within minutes, at least seven handcuffed men stepped out onto a wing. “Call the police!” one shouted, according to a video of the moment.

Brazil’s federal police eventually entered the cabin and ordered ICE agents to let the Brazilians go. With people at the airport looking on and taking video, the deportees said, the ICE agents sought to remove the shackles before letting them off the plane.

“But no one would allow that. The passengers themselves said, ‘No, now you’re not taking off the handcuffs,’” Mr. Campos said. “Because if they removed the handcuffs, I think the story would be different.”

News broadcasts showed the shackled men shuffling across the tarmac. Brazilian officials then removed the chains and the passengers spent the night at the Manaus airport. On Saturday, a Brazilian military plane took them to Belo Horizonte.

There they were greeted by Brazil’s minister of human rights, Macaé Evaristo. “I’m here at the request of President Lula,” she told the passengers on the plane, according to a video posted by the Brazilian government. “Our position is that countries can have their immigration policies, but they can never violate anyone’s rights.”

Ju Faddul contributed reporting from São Paulo, Brazil, and Genevieve Glatsky contributed reporting from Bogotá, Colombia.

The Food and Drug Administration has upgraded a recall of 6,344 bags of Lay’s Classic Potato Chips to its highest level of severity, warning of potentially serious or even deadly consequences from consuming the product. But if you’re not getting your chips in Oregon or Washington State, you have little to worry about.

Frito-Lay issued the initial recall last month of some of its 13-ounce bags of Lay’s Classic Potato Chips because they could contain “undeclared milk.”

Since then, the Food and Drug Administration has upgraded it to a Class I recall, according to the agency, which is a warning that consumption of the product — for those who have an allergy or sensitivity to milk — could cause “serious adverse health consequences or death.”

Here’s what we know.

Who is affected?

The recall affects consumers in Oregon and Washington who bought the bags of chips as early as Nov. 3, 2024, according to the F.D.A.

What is a Class I recall?

The F.D.A. has three classifications for recalls. Class I, the most severe notice, is “a situation in which there is a reasonable probability that the use of or exposure to a violative product will cause serious adverse health consequences or death,” the agency says on its website.

The Food Allergen Labeling and Consumer Protection Act of 2004 identifies milk as one of eight major food allergens. (The other seven are eggs, fish, crustacean shellfish, tree nuts, peanuts, wheat and soybeans.)

Who is at risk?

People with an allergy or severe sensitivity to milk.

Which products are affected?

If you’re worried that you may have these chips in your pantry, here’s what you should look for: The bags must have a “guaranteed fresh” date of Feb. 11, 2025, and include the manufacturing code 6462307xx or 6463307xx.

What about other Lay’s products?

No other products, flavors, sizes or variety packs by Lay’s have been recalled.

Why did the F.D.A. use its most severe classification?

It’s not clear. And since President Donald Trump’s blackout of federal health communications, the F.D.A. has issued a pause on “mass communications and public appearances that are not directly related to emergencies or critical to preserving health,” the agency said in an email.

“This is a short pause to allow the new team to set up a process for review and prioritization.”

Has anyone gotten sick?

The F.D.A. has not received any reports of allergic reactions related to the recalled chips, according to its website.

The top American envoy to the Middle East was to meet on Wednesday with Israel’s prime minister and, potentially, visit the Gaza Strip to reinforce a cease-fire agreement between Israel and Hamas that, if made permanent, would allow thousands more displaced Palestinians to return to their homes.

The envoy, Steven Witkoff, was expected to inspect the Netzarim Corridor, a four-mile strip that bisects Gaza, where American security contractors have been enlisted to help handle the return of displaced Palestinians. He would be the highest-ranking U.S. official to visit Gaza in years, both because of security concerns and the official American no-contact policy with Hamas.

An Israeli official, who was not authorized to comment publicly and spoke on condition of anonymity, said that Mr. Witkoff had arrived in Israel to meet with Prime Minister Benjamin Netanyahu and several of his top aides after discussions on Tuesday in Saudi Arabia for a broader Middle East peace plan. Israel Katz, Israel’s defense minister, will also be present at the meeting between Mr. Witkoff and Mr. Netanyahu on Wednesday, according to another Israeli official, who spoke on condition of anonymity to discuss the minister’s schedule.

David Mencer, a government spokesman, said that the Israeli authorities would not confirm any meetings on Wednesday with Mr. Witkoff, including a possible visit to the Netzarim Corridor, until after they had concluded.

Mr. Witkoff said in a Fox News interview last week that he planned to visit both the Netzarim Corridor in Gaza and, farther south, the Philadelphi Corridor on the border with Egypt during the trip, but the timing was unclear as travel schedules are usually closely held to ensure security. The U.S. Embassy in Jerusalem and Mr. Netanyahu’s office did not respond to requests for comment on Wednesday.

In the early days of the 15-month war, the Israeli military ordered a mass evacuation of northern Gaza, forcing hundreds of thousands of Palestinians to flee south. For months, Israeli soldiers patrolled the Netzarim Corridor in part to prevent Palestinians from heading back north.

But under the terms of a 42-day cease-fire agreement that was reached last week, Israeli troops on Monday withdrew from the two main roads along the Netzarim Corridor to allow Gazans to head north. By Tuesday, more than 376,000 people had reached northern Gaza, according to the latest data from the U.N. Office for the Coordination of Humanitarian Affairs.

The American firm Safe Reach Solutions is expected to oversee the operational management of the corridor, according to a person familiar with the plan, while two other firms — one American, one Egyptian — will handle the actual inspections of those heading north.

The Philadelphi Corridor, as it is known in Israel, is a roughly eight-mile border strip between Egypt and Gaza. Israeli troops currently maintain control of the area, but they are expected to withdraw during the second phase of the cease-fire, the details of which are still being negotiated. Mr. Netanyahu has called the corridor a “lifeline” for Hamas’s smuggling operations.

Mr. Witkoff played an important role in brokering the initial cease-fire deal between Israel and Hamas, teaming with officials from the Biden administration, Qatar and Egypt in the days before the Trump inauguration.

Mr. Witkoff’s visit comes ahead of the third round of hostage and prisoner exchanges between Israel and Hamas that is expected on Thursday, with another set for Saturday, Mr. Mencer said. Under the cease-fire deal, 33 Israeli hostages were to be released in the first phase in exchange for hundreds of Palestinian prisoners. Seven have already returned home, and eight of the remaining hostages are no longer alive, according to Israeli officials.

Mr. Netanyahu has been invited to meet with President Trump on Feb. 4 at the White House. The Trump administration is trying to broker a wider Middle East peace agreement that would include a diplomatic normalization between Israel and Saudi Arabia, a deal that Mr. Trump sought during his first term. But that pact largely hinges on plans for Gaza’s future.

On Tuesday, Secretary of State Marco Rubio spoke with the foreign ministers of Egypt and Qatar to discuss continued cooperation in Gaza. That would include “post-conflict planning to ensure Hamas can never govern Gaza or threaten Israel again,” according to a State Department readout of Mr. Rubio’s call with the Egyptian foreign minister, Badr Abdelatty. Though Hamas has been weakened, the militant group survived the war in Gaza and remains the most powerful Palestinian party in the territory.

Mr. Trump has also called on Egypt and Jordan to take in Palestinians from Gaza, and “clean out” the territory, he told reporters this past weekend. That has been roundly rejected by both countries, and on Wednesday, the secretary general of the Palestine Liberation Organization spoke with Mr. Abdelatty to reaffirm Egypt’s dismissal of Mr. Trump’s proposal.

“Ways to consolidate the cease-fire and provide humanitarian aid were discussed, and support for the Palestinian people to remain on their land and the absolute rejection of their displacement were emphasized,” the P.L.O. secretary general, Hussein al-Sheikh, said on social media. Mr. al-Sheikh is considered a potential successor to the Palestinian Authority president, Mahmoud Abbas.

Mr. Witkoff also met with Mr. al-Sheikh, in Riyadh, the Saudi capital, before traveling to Israel, according to two Palestinian officials who requested anonymity to discuss a closed-door meeting. Saudi Arabia’s foreign minister, Prince Faisal bin Farhan, was also at the meeting, the officials said.

Adam Rasgon contributed reporting.