President Donald Trump is allegedly heard on an audio recording demanding the ouster of then-U.S. Ambassador to Ukraine Marie Yovanovitch during a private dinner with donors in April 2018, according to an audio file obtained by ABC News.

"Get rid of her! Get her out tomorrow. I don't care. Get her out tomorrow. Take her out. OK? Do it," Trump is heard saying, according to ABC News, which said it reviewed the tape.

The recording, which the Washington Post has not independently verified, corroborates an account of the evening by Lev Parnas, a former associate of Trump's personal attorney Rudy Giuliani.

The recording of the conversation was made by Parnas' business partner Igor Fruman, ABC reported.

The dinner took place before Parnas and Fruman began working with Giuliani and seven months before Giuliani has said he began his Ukraine investigation — suggesting that the duo were agitating against the ambassador for another reason.

Todd Blanche, a lawyer for Fruman, declined to comment.

Parnas' attorney, Joseph Bondy, said that the recording was not leaked by him or his client, but that it validates Parnas' recollection of that event with Trump.

The White House did not immediately respond to a request for comment. Trump's personal attorney Jay Sekulow, asked about the tape, told reporters in the Capitol that he's "not concerned about that at all."

Vice President Mike Pence was asked about the tape Friday during an impromptu news conference with reporters in Italy.

"I have not heard the tape and would not be prepared to comment on it. All of the ambassadors for the United States of America serve at the pleasure of the president of the United States," Pence said.

Yovanovitch abruptly returned to Washington a year later, in April 2019, after being told in a late-night phone call by the director general of the Foreign Service to get on the next plane home for her own safety, according to witness testimony in the impeachment inquiry.

Last week, Ukrainian authorities said police in Ukraine are investigating whether Yovanovitch came under illegal surveillance by an unknown party before the Trump administration recalled her from Kiev.

The Ukrainian announcement came two days after House Democrats released text messages to and from Parnas suggesting the ambassador was under surveillance.

In texts to Parnas, Connecticut Republican congressional candidate Robert Hyde gave updates on Yovanovitch's location and cellphone use.

Hyde texted: "They are willing to help if we/you would like a price," and "guess you can do anything in Ukraine with money … is what I was told."

Parnas texted back: "lol."

This report contains material from the Associated Press.