Donald Trump said Sunday that he will look into requests from families of 9/11 victims to release records that could shed light on Saudi Arabia’s alleged role in the attacks 25 years ago.

Several families have long alleged that a group of extremist religious leaders in Saudi Arabia gained influence in the kingdom’s government and aided the hijackers. Fifteen of the 19 hijackers were Saudis, but the Saudi government has long denied any involvement in the attacks.

The families have asked Trump to declassify and release the relevant records. Asked about it on Sunday during his trip to Ireland, the president said he would consider it.

“I’m going to look at it when I get back,” Trump said just before boarding Air Force One to return to Washington after a weekend in Ireland. “I know they asked me Friday.”

The relatives of 9/11 victims have been engaged in a lengthy legal battle against the Saudis. One of them, Terry Strada, called on Trump during a remembrance in New York City on Friday to “tell the Saudis to stop lying”.

Strada, who lost her husband, Tom, on 9/11, said US presidents had chosen “to protect the Saudis instead of standing with the 9/11 families”.

Strada, who was one of the 9/11 family members who read aloud the names of victims at the remembrance on the 25th anniversary of the attacks, added that the current administration should “stand with the families, stand with the survivors”.

“It has been one betrayal after another,” she said. “President Trump can still change that.”