Federal agents arrested Federico G. Klein, 42, a former State Department aide, on multiple felony charges related to the Jan. 6 Capitol riot, according to a criminal complaint published by the New York Times. (Politico first reported the arrest.) The State Department did not immediately respond to a request for comment early Friday…

Klein was still employed at the State Department as a staff assistant on Jan. 6 when he joined a mob in a tunnel leading into the U.S. Capitol, the FBI said. Then he allegedly “physically and verbally engaged with the officers holding the line” at the building’s entrance, according to the complaint. After ignoring officers’ orders to move back, he assaulted officers with a riot shield that had been stolen from police, the complaint said, and then used the shield to wedge open a door into the Capitol.

At one point, Klein was caught on video shouting for more insurrectionists to come to the front lines, where officers were struggling to hold back the mob.

“We need fresh people, need fresh people,” he said, according to the complaint.