Los Angeles, July 19 -- Three deputies were killed Friday morning in an explosion at a police training facility in Southern California, authorities confirmed.

The Los Angeles County Sheriff's Department referred to the explosion on the social media platform X as a "critical workplace incident," which occurred shortly after 7:30 a.m. local time (1430 GMT) at the Biscailuz Center Academy Training in East Los Angeles.

"There were three department member fatalities," the department said, adding that homicide detectives are investigating the scene.

Local KABC-TV reported that the victims were handling some kind of explosives when the blast occurred, citing preliminary information from sources.

U.S. Attorney General Pamela Bondi described...