A Romanian man on Monday in Washington, D.C., pleaded guilty as the ringleader of a group making bomb threats and triggering "swatting" attacks against U.S. officials and legislators, the Justice Department said. File photo by Bonnie Cash/UPI | License Photo

June 2 (UPI) -- A Romanian man on Monday pleaded guilty as the ringleader of a group making bomb threats and triggering "swatting" attacks against 75 U.S. public officials, including members of Congress, four religious institutions and journalists, the Justice Department said.

Thomasz Szabo, 26, was extradited from Romania to the District of Columbia in November, DOJ said in a news release.

Szabo and his co-conspirators reported false emergencies at government buildings, houses of worship, and private residences, including the homes of senior government officials, prosecutors said.

Nemanja Radovanovic, 21, of Serbia, was charged with Szabo in August 2024 on one count of conspiracy, 29 counts of threats and false information regarding explosives, and four counts of transmitting threats in interstate and foreign commerce.