President Donald Trump said Friday that House Speaker Nancy Pelosi is "a disgrace to herself and her family."

Trump added that Pelosi's reported comments about wanting to see Trump "in prison" were "such a disgusting statement, especially since I was with foreign leaders overseas."

Earlier this week, while he was attending commemoration events for the 75th anniversary of D-Day in Normandy, France, Trump called Pelosi a "disaster" and a "nasty, vindictive" person.

Pelosi, who is also in Normandy, told reporters that she had a policy of not criticizing the president while on foreign soil. "I don't talk about the president while I'm out of the country. That's my principle," she said.

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President Donald Trump continued his fierce attacks on House Speaker Nancy Pelosi on Friday, calling her "a disgrace to herself and her family."

"Nervous Nancy Pelosi is a disgrace to herself and her family for having made such a disgusting statement, especially since I was with foreign leaders overseas," the president wrote. "There is no evidence for such a thing to have been said."

He went on, "Nervous Nancy & Dems are getting Zero work done in Congress ... and have no intention of doing anything other than going on a fishing expedition to see if they can find anything on me - both illegal & unprecedented in U.S. history."

Trump's remark about Pelosi's "disgusting statement" was likely a reference to her reported comment about wanting to see the president "in prison."

It came earlier this week during a meeting that included Pelosi and other senior Democratic leaders in which they debated the prospect of launching impeachment proceedings against Trump, Politico reported.

Read more: Nancy Pelosi is reportedly pushing back on impeachment because she wants 'to see Trump in prison' instead

Sources told the outlet Pelosi made the comment after butting heads with House Judiciary Committee Chairman Jerry Nadler about initiating an impeachment investigation into the president.

Nadler has pushed Pelosi to allow his committee to formally launch an impeachment inquiry once before, and he pressed the issue again at the meeting, but Pelosi is said to have shot him down.

"I don't want to see him impeached, I want to see him in prison," the House Speaker said, according to Politico. Pelosi's reasoning stems from her desire to see Trump defeated in the 2020 election so that he can potentially face criminal prosecution for any alleged wrongdoing.

Trump first debuted his nickname for Pelosi on Thursday, after Politico's story was published.

Read more: Trump calls Pelosi 'Nervous Nancy' before a somber D-Day commemoration at an American cemetery in Normandy

Sitting in front of a cemetery of American war dead in Normandy, France, Trump argued that Pelosi's leadership and the Democratic Party's investigations into him were a "disaster."

"Nancy Pelosi, I call her Nervous Nancy, Nancy Pelosi doesn't talk about it. Nancy Pelosi is a disaster, OK?" Trump said during an interview with the Fox News host Laura Ingraham. "She's a disaster. Let her do what she wants, you know what? I think they're in big trouble."

The interview took place shortly before Trump attended a commemoration of the 75th anniversary of D-Day.

When asked about the comment, Pelosi, who is also in Normandy, told reporters that she had a policy of not criticizing the president while on foreign soil.

"I don't talk about the president while I'm out of the country," she said. "That's my principle."