Canadian wildfire smoke causes 'very unhealthy' conditions in American Midwest and reaches Europe

MINNEAPOLIS (AP) — Smoke from Canadian wildfires carried another day of poor air quality south of the border to the Midwest, where conditions in parts of Minnesota, Wisconsin and Michigan were rated “very unhealthy” Tuesday.

The fires have forced more than 27,000 Canadians in three provinces to flee their homes, and the smoke has even reached Europe.

The smell of smoke hung over the Minneapolis-St. Paul area on Tuesday morning despite rain that obscured the full measure of the dirty air. The Minnesota Pollution Control Agency issued an alert for almost the entire state into Wednesday, but the Twin Cities area got the worst of it in the Midwest on Tuesday.

“As the smoke continues to move across the state Tuesday, air quality will slowly improve from northwest to southeast for the remainder of the alert area,” the agency said. “The smoke is expected to leave the state by Wednesday at noon.”

The Iowa Department of Natural Resources warned that air quality in a band from the state’s southwest corner to the northeast could fall into the unhealthy category through Thursday morning. The agency recommended that people, especially those with heart and lung disease, avoid long or intense activities and to take extra breaks while doing strenuous actions outdoors.

Smoky conditions that have reached the U.S. periodically in recent weeks extended as far east Tuesday as Michigan, west into the Dakotas and Nebraska, and as far to the southeast as Georgia.

The U.S. Environmental Protection Agency's AirNow map showed a swath of red for “unhealthy” conditions across the eastern half Minnesota into western Wisconsin and northern Iowa. The map also showed purple for “very unhealthy" across much of the Minneapolis-St. Paul metropolitan area, where the Air Quality Index numbers of 250 and were common, though conditions started to improve slightly by late morning.

The Air Quality Index — AQI — measures how clean or polluted the air is, focusing on health effects that might be experienced within a few hours or days after breathing polluted air. It is based on ground-level ozone, particle pollution, carbon monoxide, sulfur dioxide, and nitrogen dioxide. Particulates are the main issue from the fires

The index ranges from green, where the air quality is satisfactory and air pollution poses little or no risk, to maroon, which is considered hazardous. That level comes with health warnings of emergency conditions where everyone is more likely to be affected, according to AirNow.

While Minnesota officials warned on Monday that conditions in the northwest part of the state could reach the maroon category on Tuesday, conditions there were generally yellow, or moderate. There were a few scattered locations in the Twin Cities area that temporarily hit maroon on Tuesday morning. But by midday Tuesday, most of the remaining maroon spots in the region were on the Upper Peninsula of Michigan.

Hennepin Healthcare, the main emergency hospital in Minneapolis, has seen a slight increase in visits by patients with respiratory symptoms aggravated by the dirty air.

Dr. Rachel Strykowski, a pulmonologist, said there is usually a bit of a delay before patients come in, which is unfortunate because the sooner those patients contact their doctors, the better the outcome. Typical symptoms, she said, include “increase in shortness of breath, wheezing, maybe coughing a bit more, and flares of their underlying disease, and that's usually COPD and asthma.”

What happens, Strykowski said, is that the fine particulate matter from the wildfire smoke triggers more inflammation in patients' airways, aggravating their underlying medical conditions.

Strykowski noted that this is usually a time those patients can go outside and enjoy the summer weather because there are fewer triggers, so the current ones forcing them to stay inside can feel “quite isolating."

People can protect themselves by staying indoors or by wearing N95 masks, she said. Strykowski added that they must be N95s because the cloth masks many people used during the COVID-19 pandemic don't provide enough filtration.

Canada is having another bad wildfire season, and more than 27,000 people in three provinces have been forced to evacuate. Most of the smoke reaching the American Midwest has been coming from fires northwest of the provincial capital of Winnipeg in Manitoba.

Winnipeg hotels opened Monday to evacuees. More than 17,000 Manitoba residents have been displaced since last week, including 5,000 residents of the community of Flin Flon, nearly 400 miles (645 kilometers) northwest of Winnipeg. In neighboring Saskatchewan, 2,500 residents of the town of La Ronge were ordered to flee Monday, on top of more than 8,000 in the province who had been evacuated earlier.

In Saskatoon, where the premiers of Canada’s provinces and the country’s prime minister met Monday, Saskatchewan Premier Scott Moe said all of Canada has come together to help the Prairie provinces.

Two people were killed by a wildfire in mid-May in Lac du Bonnet, northeast of Winnipeg.

Canada’s worst-ever wildfire season was in 2023. It choked much of North America with dangerous smoke for months.

Canada’s wildfires are so large and intense that the smoke is even reaching Europe, where it is causing hazy skies but isn’t expected to affect surface-air quality, according the European climate service Copernicus.

The first high-altitude plume reached Greece and the eastern Mediterranean just over two weeks ago, with a much larger plume crossing the Atlantic within the past week and more expected in coming days, according to Copernicus.

“That’s really an indicator of how intense these fires are, that they can deliver smoke,” high enough that they can be carried so far on jet streams, said Mark Parrington, senior scientist at the service.

The fires also are putting out significant levels of carbon pollution — an estimated 56 megatonnes through Monday, second only to 2023, according to Copernicus.

Associated Press writers Tammy Webber in Fenton, Michigan, and Scott McFetridge in Des Moines, Iowa, contributed to this report.

Smoke from wildfires burning in Canada and rain obscures the downtown skyline of Minneapolis, Minn., on Tuesday, June 3, 2025. (AP Photo/Mark Vancleave)

Royal Canadian Air Force Cpl. Ethan Cai helps load cargo as evacuees from Pinaow Wachi Care Home board a C-130 Hercules aircraft in Norway House, Manitoba, Tuesday, June 3, 2025, at the Norway House Airport as crews continue to fight wildfires in northern Manitoba. (David Lipnowski/The Canadian Press via AP)

Smoke filled skies from out of control wildfires in Norway House, Manitoba Tuesday, June 3, 2025, at the Norway House Airport as crews continue to fight wildfires in northern Manitoba. (David Lipnowski/The Canadian Press via AP)

A sign warns of an air quality alert as smoke from wildfires burning in Canada reaches Minneapolis, Minn., on Tuesday, June 3, 2025. (AP Photo/Mark Vancleave)

Royal Canadian Air Force Pte. Carter Brinn (left) and Cpl. Ethan Cai helps load cargo as evacuees from Pinaow Wachi Care Home board a C-130 Hercules aircraft in Norway House, Man., Tuesday, June 3, 2025, at the Norway House Airport as crews continue to fight wildfires in northern Manitoba. (David Lipnowski/The Canadian Press via AP)

U.S. President Donald Trump says Iran has proposed negotiations after his threat to strike the Islamic Republic as an ongoing crackdown on demonstrators has led to hundreds of deaths.

Trump said late Sunday that his administration was in talks to set up a meeting with Tehran, but cautioned that he may have to act first as reports mount of increasing deaths and the government continues to arrest protesters.

“The meeting is being set up, but we may have to act because of what’s happening before the meeting. But a meeting is being set up. Iran called, they want to negotiate,” Trump told reporters on Air Force One on Sunday night.

Iran did not acknowledge Trump’s comments immediately. It has previously warned the U.S. military and Israel would be “legitimate targets” if America uses force to protect demonstrators.

The U.S.-based Human Rights Activists News Agency, which has accurately reported on past unrest in Iran, gave the death toll. It relies on supporters in Iran cross checking information. It said at least 544 people have been killed so far, including 496 protesters and 48 people from the security forces. It said more than 10,600 people also have been detained over the two weeks of protests.

With the internet down in Iran and phone lines cut off, gauging the demonstrations from abroad has grown more difficult. Iran’s government has not offered overall casualty figures.

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A witness told the AP that the streets of Tehran empty at the sunset call to prayers each night.

Part of that stems from the fear of getting caught in the crackdown. Police sent the public a text message that warned: “Given the presence of terrorist groups and armed individuals in some gatherings last night and their plans to cause death, and the firm decision to not tolerate any appeasement and to deal decisively with the rioters, families are strongly advised to take care of their youth and teenagers.”

Another text, addressed “Dear parents,” which claimed to come from the intelligence arm of the paramilitary Revolutionary Guard, also directly warned people not to take part in demonstrations.

The witness spoke to the AP on condition of anonymity due to the ongoing crackdown.

—- By Jon Gambrell in Dubai, United Arab Emirates

Iran drew tens of thousands of pro-government demonstrators to the streets Monday in a show of power after nationwide protests challenging the country’s theocracy.

Iranian state television showed images of demonstrators thronging Tehran toward Enghelab Square in the capital.

It called the demonstration an “Iranian uprising against American-Zionist terrorism,” without addressing the underlying anger in the country over the nation’s ailing economy. That sparked the protests over two weeks ago.

State television aired images of such demonstrations around the country, trying to signal it had overcome the protests, as claimed by Iranian Foreign Minister Abbas Araghchi earlier in the day.

China says it opposes the use of force in international relations and expressed hope the Iranian government and people are “able to overcome the current difficulties and maintain national stability.”

Chinese Foreign Ministry spokesperson Mao Ning said Monday that Beijing “always opposes interference in other countries’ internal affairs, maintains that the sovereignty and security of all countries should be fully protected under international law, and opposes the use or threat of use of force in international relations.”

German Chancellor Friedrich Merz condemned “in the strongest terms the violence that the leadership in Iran is directing against its own people.”

He said it was a sign of weakness rather than strength, adding that “this violence must end.”

Merz said during a visit to India that the demonstrators deserve “the greatest respect” for the courage with which “they are resisting the disproportional, brutal violence of Iranian security forces.”

He said: “I call on the Iranian leadership to protect its population rather than threatening it.”

Iran’s Foreign Ministry spokesman on Monday suggested that a channel remained open with the United States.

Esmail Baghaei made the comment during a news conference in Tehran.

“It is open and whenever needed, through that channel, the necessary messages are exchanged,” he said.

However, Baghaei said such talks needed to be “based on the acceptance of mutual interests and concerns, not a negotiation that is one-sided, unilateral and based on dictation.”

The semiofficial Fars news agency in Iran, which is close to the paramilitary Revolutionary Guard, on Monday began calling out Iranian celebrities and leaders on social media who have expressed support for the protests over the past two weeks, especially before the internet was shut down.

The threat comes as writers and other cultural leaders were targeted even before protests. The news agency highlighted specific celebrities who posted in solidarity with the protesters and scolded them for not condemning vandalism and destruction to public property or the deaths of security forces killed during clashes. The news agency accused those celebrities and leaders of inciting riots by expressing their support.

Canada said it “stands with the brave people of Iran” in a statement on social media that strongly condemned the killing of protesters during widespread protests that have rocked the country over the past two weeks.

“The Iranian regime must halt its horrific repression and intimidation and respect the human rights of its citizens,” Canada’s government said on Monday.

Iran’s foreign minister claimed Monday that “the situation has come under total control” after a bloody crackdown on nationwide protests in the country.

Abbas Araghchi offered no evidence for his claim.

Araghchi spoke to foreign diplomats in Tehran. The Qatar-funded Al Jazeera satellite news network, which has been allowed to work despite the internet being cut off in the country, carried his remarks.

Iran’s foreign minister alleged Monday that nationwide protests in his nation “turned violent and bloody to give an excuse” for U.S. President Donald Trump to intervene.

Abbas Araghchi offered no evidence for his claim, which comes after over 500 have been reported killed by activists -- the vast majority coming from demonstrators.

Araghchi spoke to foreign diplomats in Tehran. The Qatar-funded Al Jazeera satellite news network, which has been allowed to work despite the internet being cut off in the country, carried his remarks.

Iran has summoned the British ambassador over protesters twice taking down the Iranian flag at their embassy in London.

Iranian state television also said Monday that it complained about “certain terrorist organization that, under the guise of media, spread lies and promote violence and terrorism.” The United Kingdom is home to offices of the BBC’s Persian service and Iran International, both which long have been targeted by Iran.

A huge crowd of demonstrators, some waving the flag of Iran, gathered Sunday afternoon along Veteran Avenue in LA’s Westwood neighborhood to protest against the Iranian government. Police eventually issued a dispersal order, and by early evening only about a hundred protesters were still in the area, ABC7 reported.

Los Angeles is home to the largest Iranian community outside of Iran.

Los Angeles police responded Sunday after somebody drove a U-Haul box truck down a street crowded with the the demonstrators, causing protesters to scramble out of the way and then run after the speeding vehicle to try to attack the driver. A police statement said one person was hit by the truck but nobody was seriously hurt.

The driver, a man who was not identified, was detained “pending further investigation,” police said in a statement Sunday evening.

Shiite Muslims hold placards and chant slogans during a protest against the U.S. and show solidarity with Iran in Lahore, Pakistan, Sunday, Jan. 11, 2026. (AP Photo/K.M. Chaudary)

Activists carrying a photograph of Reza Pahlavi take part in a rally supporting protesters in Iran at Lafayette Park, across from the White House, in Washington, Sunday, Jan. 11, 2026. (AP Photo/Jose Luis Magana)

Activists take part in a rally supporting protesters in Iran at Lafayette Park, across from the White House in Washington, Sunday, Jan. 11, 2026. (AP Photo/Jose Luis Magana)

Protesters burn the Iranian national flag during a rally in support of the nationwide mass demonstrations in Iran against the government in Paris, Sunday, Jan. 11, 2026. (AP Photo/Michel Euler)