The FBI is investigating the Los Angeles deputy mayor of public safety after reports show he was allegedly tied to City Hall bomb threats made earlier this year. Agents searched the home of Brian Williams on Tuesday for evidence of a connection.  Williams, who’s been placed on administrative leave, helps to oversee the local police and fire department while managing public safety for the area.  “Earlier this year the LAPD [Los Angeles Police Department] responded to a bomb threat made against Los Angeles City Hall,” the department said in a statement to the Los Angeles Times. “Our initial investigation revealed that the source of the threat was likely from Brian Williams, Deputy Mayor for Public Safety. Due to the Department’s working relationship with Mr. Williams, the investigation was referred to the FBI. The FBI remains the investigating agency.” Williams worked in Mayor Karen Bass’s (D) administration for two years and previously served as the executive director of Los Angeles County’s Sheriff Civilian Oversight Commission for seven years. “The Mayor's Office was notified that the FBI searched the home of Deputy Mayor Brian Williams yesterday as part of an investigation into a bomb threat he allegedly made against City Hall earlier this year,” Bass's spokesperson Zach Seidl said in a statement obtained by Nexstar's KTLA.  “He was immediately placed on administrative leave. The Mayor takes this matter very seriously,” he added. “When the threat was reported, LAPD investigated and determined there was no immediate danger. Following additional investigation, LAPD referred this matter to the FBI for further investigation.” The Hill has reached out to LAPD and Bass's office for further comment. KTLA is owned by Nexstar Media Group, which also owns The Hill.