On the tail of the resignation of Homeland Security Secretary Kirstjen Nielsen and the withdrawal of the nomination of would-be ICE director Ronald Vitiello, Secret Service Director Randolph “Tex” Alles is leaving his position, as well, CNN first reported Monday.

White House press secretary Sarah Sanders soon confirmed the news to multiple outlets, saying Alles would be “leaving shortly” without specifying whether he was voluntarily resigning.

SARAH SANDERS: USSS Director Randolph Alles "will be leaving shortly and President Trump has selected James M. Murray, a career member of the USSS, to take over as director beginning in May." pic.twitter.com/X5908S0NGD — Saagar Enjeti (@esaagar) April 8, 2019

CNN reported that President Donald Trump instructed acting White House chief of staff Mick Mulvaney to fire Alles. But in a statement shared with TPM, Alles denied that characterization. He did say that he “was told weeks ago by the Administration that transitions in leadership should be expected across the Department of Homeland Security.” (Read his full statement bel0w.)

CNN also reported that there could be additional high-level removals at DHS in what one unnamed source described as a “purge.”

Per the report, DHS General Counsel John Mitnick and U.S. Citizienship and Immigration Services Director Francis Cissna “are expected to be gone soon.” CNN added that the White House could remove additional officials at the department as well.

NBC News also reported that there could be additional ousters, but did not confirm which officials could be fired.

Various reports have indicated that White House adviser Stephen Miller, known for his aggressive stance on immigration and the asylum process, was involved in both Nielsen’s ouster and the withdrawal of Vitiello’s nomination.

On Friday, after announcing the withdrawal of Vitiello’s nomination, Trump told reporters: “Ron’s a good man, but we’re going in a tougher direction.”

Read the Secret Service’s statement on Alles’ ouster, which includes a statement from Alles himself, below: