Paul Abbate, the deputy director of the FBI who took over temporarily as acting director after the resignation of Christopher Wray, retired from his post on Monday, an FBI official said.

Paul Abbate, who as the FBI's longtime deputy director had been expected to replace Director Christopher Wray on an acting basis, is retiring from the bureau, according to an email he sent to senior executives and obtained by The Associated Press on Monday.

Paul Abbate, who became the FBI’s acting director following the departure of Christopher Wray, is retiring from the bureau, according to an email he sent to senior executives that was obtained by

Brian Driscoll, who has worked for the Federal Bureau of Investigation (FBI) since 2007, has been named the acting director of the agency. The news came after Paul Abbate retired.

Paul Abbate made the unexpected announcement in an email to senior officials Monday ahead of President Trump's inauguration.