(CNN) House Speaker Nancy Pelosi said Thursday it was "beyond inappropriate" for President Donald Trump to lash out at her and call her a "nasty, vindictive, horrible person" while being interviewed in Normandy.

Pelosi said it is her practice not to criticize the President when she is overseas, speaking with CNN's Fareed Zakaria at the Council on Foreign Relations.

The interview took place on the 75th anniversary of D-Day at the cemetery where American soldiers who lost their lives in World War II are buried.

"We were right there in Normandy with the tombstones behind us and the rest, so I just wasn't going to engage in that," Pelosi said on Thursday, "but I never do anyway, it's our practice."

"When he then came on TV later in front of those same tombstones and started saying all this stuff, it was so beyond inappropriate," Pelosi said. "I felt really sorry for him."

Tensions between Pelosi and Trump have escalated from their already advanced level since Pelosi's reported "prison" comments. The two leaders have often been at odds since Pelosi became speaker in January and have sparred both publicly and privately.

Pelosi told CNN earlier this week that she's "done" with Trump.

"I'm done with him," she said, adding, "I don't even want to talk about him."

She continued to blast him on Thursday, again referencing his acerbic Fox News interview.

"What he does is he projects. Like when he says Nancy's a mess, that means he's a mess. When he says Nancy's nervous that means he's nervous," Pelosi said.

"He's always talking about himself no matter who the subject of the sentence is," Pelosi said.

"There has to be an intervention here," she added.

She repeated her opposition to impeaching the President, and said, "I don't think there's anything more divisive we can do than to impeach a President of the United States."

Pelosi also weighed in on current events, including the apparent attack on two tankers in the Gulf of Oman on Thursday.

Secretary of State Mike Pompeo blamed Iran for an attack , saying the assessment was based on intelligence, but presented no evidence to support his claim.

Later Thursday, four US officials told CNN that the US has video and photos that show an Iranian navy boat removing an unexploded mine attached to the hull of one of the tankers.

Asked if she believes the US is headed toward a military confrontation with Iran, Pelosi said, "Well I certainly hope not."

Pelosi said "the American people have no appetite for a war with Iran," adding, "I don't think the President does."

"This is a very dangerous situation," she said.

The California Democrat said Pompeo "has not offered any proof of this, he's just said what he said, and it's not unbelievable that a country might exercise its leverage."

"We have absolutely no appetite for going to war or to be provocative to create situations that might evoke responses where mistakes could be made," Pelosi said.

"Countries exercise their leverage, they threaten, they this or that," Pelosi said, "but there could be mistakes made and that's a very dangerous thing."

This story has been updated.