WASHINGTON

Senate Minority Leader Chuck Schumer on Thursday accused President Donald Trump of lying about a report that said a US military investigation found American forces may be responsible for a deadly strike on a school in Iran.

"As the war on Iran continues, Donald Trump does what he usually does. He lies. He's lying to the American people," Schumer said on the Senate floor.

His remarks came a day after Trump told reporters that he does not know about the recent findings.

A preliminary US military investigation concluded that American forces were responsible for a Feb. 28 deadly strike on an Iranian elementary school, the New York Times reported Wednesday, citing US officials and others familiar with the findings.

Schumer cited public reporting suggesting that preliminary intelligence assessments indicate US military operations may have been involved in "this horrible missile strike" on the all girls Iranian elementary school, killing more than 170 victims.

"When Donald Trump was asked about those reports, what did he say? He said, 'Well, I don't know about that.'

"That's ridiculous, and it's an obvious lie," Schumer said.

The New York Democrat said Trump expects the American people to believe that he "has no clue" about intelligence regarding a "horrific attack" on a school several days after it occurred.

"So, either Donald Trump is lying when he says he knows nothing about the school bombing intelligence findings -- he gets these reports every day -- or he's dangerously uninformed, which says his staff is really screwed up," Schumer said.

Regional tensions have escalated since Feb. 28, when the US and Israel launched a joint attack on Iran that has killed more than 1,300 victims, including former Supreme Leader Ayatollah Ali Khamenei.

Iran has retaliated with drone and missile strikes targeting Israel and Gulf countries that are home to US military assets.