Outdated intel likely led US to carry out deadly strike on Iranian elementary school, AP sources say

WASHINGTON (AP) — Outdated intelligence likely led to the United States carrying out a deadly missile strike on an elementary school in Iran that killed over 165 people, many of them children, in the opening hours of the conflict, according to a U.S. official and a second person briefed on findings of a preliminary U.S military investigation into the incident.

The bombing of the school and its casualties involving children has become a focal point of the war, and if ultimately confirmed to be at the hands of the U.S., would also stand among the highest civilian casualty events caused by the American military operations in the last two decades.

President Donald Trump initially blamed Iran for the attack, later said he wasn’t certain who was to blame, and then said he would accept the results of the Pentagon’s investigation. The issue took on added urgency on Wednesday after the New York Times first reported that a preliminary investigation found that the U.S. was responsible.

U.S. Central Command relied on target coordinates for the strike using outdated data provided by the Defense Intelligence Agency, according to the person familiar with the preliminary finding.

The agency did not respond to a request for comment.

The preliminary finding prompted immediate calls for more information from the Pentagon. White House press secretary Karoline Leavitt said that “the investigation is still ongoing.”

Both the U.S. official and the person familiar with the matter spoke to The Associated Press on the condition of anonymity to discuss the sensitive matter.

Dozens of Democratic senators demanded answers from the Trump administration on Wednesday as a growing body of evidence suggested that the U.S. was likely responsible for the strike.

The letter from more than 45 senators pressed Defense Secretary Pete Hegseth on whether the U.S. was culpable for the strike and what previous analysis of the building had been done. The senators also raised concerns about the Pentagon hollowing-out a congressionally mandated office set up specifically to reduce civilian casualties.

“Under this administration, budgetary and personnel cuts at the Department have robbed military commands of crucial resources to prevent and respond to civilian casualties,” the senators wrote. Those include cuts at U.S. Central Command, whose forces are leading the military campaign against Iran, and the Civilian Protection Center of Excellence, which was signed into law in 2022 as part of a Pentagon ambition to reduce death tolls from strikes.

The revelation could threaten to erode public support in the U.S. effort against Iran at a time when Trump, who as a candidate railed against American involvement in “stupid” overseas wars, faces persistent questions about the purpose and of the conflict and what would bring it to an end.

One former Pentagon official said the Feb. 28 strike that hit Shajareh Tayyebeh Elementary School, which is located near a neighboring base for the Iranian Revolutionary Guard, came as a natural result of changes made by the Trump administration to reduce staff to mitigate civilian harm and Hegseth’s emphasis on lethality over legality.

There are several indications that the strike on the school may have been avoidable.

It happened Saturday morning, the start of the Iranian school week, when the building was full of young children. Satellite analysis by the AP shows that the school, as well as other targets struck the same day, had characteristics visible from the air that could have identified them as civilian sites before they were struck.

The AP reported last week that satellite images, expert analysis, a U.S. official and public information released by the U.S. military all suggested it was likely a U.S. strike. That evidence grew stronger on Monday, as new footage emerged showing what experts identified as a U.S.-made Tomahawk cruise missile slamming into the military compound as smoke was already rising from the area where the school was located.

Publicly available satellite imagery shows the school building was part of the military compound until about 2017, when a new wall was added to separate the two. A watchtower on the property was also removed. Around the same time, the imagery shows the walls surrounding the building were painted with murals in vibrant colors, primarily blue and pink, so bright they're visible from space

The school was clearly labeled as such in online maps and has an easily-accessible website full of information about students, teachers and administrators.

International law governing warfare bars strikes on structures, vehicles and people that are not military objectives and combatants. Civilian homes, schools, medical facilities and cultural sites are generally off limits for military strikes. The proximity of a school to a valid military target does not change its status as a civilian site, said Elise Baker, a senior staff lawyer at the Atlantic Council, a Washington-based nonprofit think tank.

If the U.S. is found responsible, said Sen. Tim Kaine during a briefing with journalists on Wednesday: “It’s either we’ve changed our traditional targeting rules or we made a mistake.”

“If we’ve changed our traditional targeting rules and we no longer provide the same level of protection for civilians, that would be tragic,” Kaine said.

Some Republicans, too, are sounding alarms.

Sen. Kevin Cramer of North Dakota told reporters that an investigation needs to “get to the bottom of it,” and then “admit if you know whose fault it is.”

If the U.S. was behind it, Cramer said, the military must “do everything you can to eliminate those mistakes going forward.”

He added: “But you also can’t undo it.”

Congress directed the Pentagon to create the Civilian Protection Center of Excellence in late 2022 as part of the wide-ranging annual defense authorization bill, which passed both chambers with broad bipartisan support. The bill said the center was to “institutionalize and advance knowledge, practices, and tools for preventing, mitigating, and responding to civilian harm.”

The measure put into law an initiative that had already been started by Defense Secretary Lloyd Austin earlier that year. The 36-step action plan was “ambitious and necessary,” Austin said at the time.

In April 2023, that office had a full-time director hired by the Army and an initial core staff of 30 civilians, according to a 2024 Pentagon report that said that the workforce was expected to grow.

Wes Bryant began working there in 2024 as the Branch Chief of Civil Harm Assessments. One of the things the office was discussing was updating the “no-strike lists,” lists of protected sites in other countries, such as hospitals, schools, churches and mosques, that the Pentagon keeps. When he was working at the Pentagon, it was well known that the list was out-of-date, he said. But under Hegseth, the office's size was slashed and the work on updating the no-strike lists stopped, he said.

“They have no budget. They're just sitting there trying to maintain any semblance of the mission,” he said.

Capt. Tim Hawkins, the spokesman for U.S. Central Command, denied reports that the military command only had a single person assigned to the mission but would not offer any further details, citing the ongoing investigation.

This story was first published on March 11, 2026. It was published again on March 12, 2026, to make clear that no-strike lists are lists of protected sites in other countries, such as hospitals, schools, churches and mosques, that the Pentagon keeps.

Frankel reported from Jerusalem. Associated Press writers Mary Clare Jalonick, Konstantin Toropin and Joey Cappelletti in Washington contributed to this report.

The arm of a deceased person is seen protruding from the rubble as rescue workers and residents search in the aftermath a strike on a girls' elementary school in Minab, Iran, Saturday, Feb. 28, 2026. (Abbas Zakeri/Mehr News Agency via AP)

Rescue workers and residents search through the rubble in the aftermath of a strike on a girls' elementary school in Minab, Iran, Saturday, Feb. 28, 2026. (Abbas Zakeri/Mehr News Agency via AP)

Rescue workers and residents search through the rubble in the aftermath of a strike on a girls' elementary school in Minab, Iran, Saturday, Feb. 28, 2026. (Abbas Zakeri/Mehr News Agency via AP)

Rescue workers and residents search through the rubble in the aftermath of a strike on a girls' elementary school in Minab, Iran, Saturday, Feb. 28, 2026. (Abbas Zakeri/Mehr News Agency via AP)

Rescue workers and residents search through the rubble in the aftermath of a strike on a girls' elementary school in Minab, Iran, Saturday, Feb. 28, 2026. (Abbas Zakeri/Mehr News Agency via AP)

PARIS (AP) — Activists worldwide will march in May Day rallies Friday, calling for peace, higher wages and better working conditions as many workers grapple with rising energy costs and shrinking purchasing power tied to the Iran war.

The day is a public holiday in many countries, and demonstrations, some of which have turned violent in the past, are expected in many of the world's major cities.

“Working people refuse to pay the price for Donald Trump’s war in the Middle East,” the European Trade Union Confederation, which represents 93 trade union organizations in 41 European countries, said. “Today’s rallies show working people will not stand by and see their jobs and living standards destroyed.”

In the United States, activists opposing U.S. President Donald Trump’s policies are planning marches and boycotts.

Here’s what to know about May Day.

Rising living costs linked to the conflict in the Middle East are expected to be a key theme in Friday's rallies.

In the Philippines' capital of Manila, protest organizers said they expect big crowds of workers. “There will be a louder call for higher wages and economic relief because of the unprecedented spikes in fuel prices,” Renato Reyes, a leader of the left-wing political group Bayan, told The Associated Press.

“Every Filipino worker now is aware that the situation here is deeply connected to the global crisis,” said Josua Mata, leader of SENTRO umbrella group of labor federations.

In Indonesia, labor unions have warned against worsening economic pressures at home. “Workers are already living paycheck to paycheck,” said Said Iqbal, president of the Indonesian Trade Union Confederation.

In Pakistan, May Day is a public holiday marked by rallies, but many daily wage earners cannot afford to take time off.

“How will I bring vegetables and other necessities home if I don’t work?” said Mohammad Maskeen, a 55-year-old construction worker near Islamabad.

Rising oil prices have fueled inflation, which the government estimates at about 16%, in a country heavily reliant on financial support from the International Monetary Fund and allied nations.

Workers' unions traditionally use May Day to rally around wages, pensions, inequality and broader political issues.

Protests are planned from Seoul, Jakarta and Istanbul to most European Union capitals and cities across the United States.

In France, unions called for demonstrations in Paris and elsewhere under the slogan “bread, peace and freedom,” linking workers’ daily concerns to conflicts in Ukraine and the Middle East.

In Italy, the government approved nearly 1 billion euros ($1.17 billion) in job incentives this week, aiming to promote stable employment and curb labor abuses ahead of May Day. The measures extend tax breaks to encourage hiring young people and disadvantaged women, and seek to address exploitation tied to platform-based work. Opposition parties dismissed the package as “pure propaganda.”

In Portugal, proposed labor law changes by the center-right government sparked a general strike and street protests last year. There is still no deal after nine months of negotiations with unions and employers. Unions say the proposals would weaken workers’ rights, including by expanding overtime limits and reducing some benefits.

May Day carries special meaning this year in France after a heated debate about whether employees should be allowed to work on the country’s most protected public holiday — the only day when most employees have a mandatory paid day off.

Almost all businesses, shops and malls are closed, and only essential sectors such as hospitals, transport and hotels are exempt.

A recent parliamentary proposal to expand work on the day prompted major outcry from unions and left-wing politicians.

“Don’t touch May Day,” workers' unions said in a joint statement.

Faced with the controversy, the government this week introduced a bill meant to expand May Day work to people staffing bakeries and florists. It is customary in France to give lily of the valley flowers on May Day as a symbol of good luck.

“May 1 is not just any day,” Small and Medium-sized Businesses Minister Serge Papin said. “It symbolizes social gains stemming from a century of building social rules that have led to the labor code we know in France. It is indeed a special day.”

Activists and labor unions are organizing street protests and boycotts across the United States, where May Day is not a federal holiday.

May Day Strong, a coalition of activist groups and labor unions, has called on people to protest under the banner of “workers over billionaires.”

Voicing strong opposition to Trump's policies, organizers listed thousands of May Day actions across the country and are seeking an economic blackout through “no school, no work, no shopping.”

Demands include taxing the rich and putting an end to the Trump administration’s immigration crackdown,

While labor and immigrant rights are historically intertwined, the focus of May Day rallies in the U.S. shifted to immigration in 2006. That’s when roughly 1 million people, including nearly half a million in Chicago alone, took to the streets to protest federal legislation that would’ve made living in the U.S. without legal permission a felony.

May Day, or International Workers’ Day, traces back more than a century to a pivotal period in U.S. labor history.

In the 1880s, unions pushed for an eight-hour workday through strikes and demonstrations. In May 1886, a Chicago rally turned deadly when a bomb exploded and police responded with gunfire. Several labor activists — most of them immigrants — were convicted of conspiracy and other charges; four were executed.

Unions later designated May 1 to honor workers. A monument in Chicago’s Haymarket Square commemorates them with the inscription: “Dedicated to all workers of the world.”

May Day is now observed in much of the world from Europe to Latin America, Africa and Asia.

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AP journalists Barry Hatton in Lisbon, Portugal, Giada Zampano in Rome, Munir Ahmed in Islamabad, Niniek Karmini in Jakarta, Indonesia, and Jim Gomez in Manila, Philippines, contributed to this story.

Union members carefully step through rain-formed puddles to participate in a May Day rally in the rain Friday, May 1, 2026, in Tokyo. (AP Photo/Eugene Hoshiko)

People march to mark International Workers' Day, also known as May Day, in Sydney, Friday, May 1, 2026. (AP Photo/Rick Rycroft)

People march to mark International Workers' Day, also known as May Day, in Sydney, Friday, May 1, 2026. (AP Photo/Rick Rycroft)

FILE - Activist and workers raise their clenched fists during a May Day rally in Manila, Philippines, May 1, 2025. (AP Photo/Aaron Favila, File)

Laborers protest during a May Day demonstration in Buenos Aires, Argentina, Thursday, April 30, 2026. (AP Photo/Rodrigo Abd)

Laborers hold flares during a May Day demonstration in Buenos Aires, Argentina, Thursday, April 30, 2026. (AP Photo/Rodrigo Abd)

Members of trade unions take part in a rally a day ahead of the International Labor Day, in Karachi, Pakistan, Thursday, April 30, 2026. The banner in center reading as 'red salute to the martyrs of Chicago and the struggle will continue until economic exploitation is ended' (AP Photo/Ali Raza)

Members of trade unions take part in a rally a day ahead of the International Labor Day, in Karachi, Pakistan, Thursday, April 30, 2026. (AP Photo/Ali Raza)