A third prosecutor, Alex Kristofcak, was also placed on leave in response to comments he made on social media, the email said.
In those comments, Kristofcak criticized Washington, D.C.'s interim U.S. attorney, Ed Martin, after he warned Georgetown University Law School that he would not hire its students unless the school removed diversity, equity and inclusion from its curriculum.
"This is a grotesque abuse of power," Kristofcak wrote of Martin.
"I am so sorry for my colleagues in DC who have this thug of a boss."
A spokesman for the U.S. Attorney's Office in the Southern District of New York declined to comment.
Other career department officials were also fired Friday, including pardon attorney Liz Oyer and Bobak Talebian, who oversaw the handling of Freedom of Information Act requests.