US Attorney General Jeff Sessions has fired Andrew McCabe from his former position as FBI Deputy Director, just two days before he was eligible to retire.
Mr McCabe, who would have been eligible to retire on his 50th birthday in two days, was heavily involved in the investigations into Hillary Clinton and Russia’s role in the 2016 US election.
US President Donald Trump has repeatedly criticised both Mr McCabe and his former boss, then FBI Director James Comey.
Mr Sessions said in a statement that he had acted on the advice of FBI disciplinary officials.
“Based on the report of the Inspector General, the findings of the FBI Office of Professional Responsibility, and the recommendation of the Department’s senior career official, I have terminated the employment of Andrew McCabe effective immediately,” Mr Sessions said.
The firing is seen by some as politically motivated, given president Trump’s heavy criticism of alleged political bias in the FBI leadership.
“Andrew McCabe FIRED, a great day for the hard working men and women of the FBI – A great day for Democracy,” Mr Trump said on Twitter.
“Sanctimonious James Comey was his boss and made McCabe look like a choirboy. He knew all about the lies and corruption going on at the highest levels of the FBI!”