The whereabouts of the second grenade remain unknown. Luna said the department has begun an internal investigation into the handling of the situation. Investigators have returned to the Santa Monica ...

The deadly blast was caused by 1 of 2 grenades retrieved the day before, and believed to be inert, Sheriff Robert Luna ...

Los Angeles County Sheriff Robert Luna announced that one of the two grenades transported to the Biscailuz Center Training ...

One of two grenades taken to a Los Angeles County Sheriff’s Department facility detonated last week and killed three ...

The explosion at the Biscailuz Training Facility in East Los Angeles killed three members of the agency's bomb squad.

LA County Sheriff Robert Luna and the ATF are expected to offer new details Friday on the investigation into the explosion ...

Sheriff’s officials were warning the public Saturday to be on the lookout for a possibly live grenade — one of two that were ...

A grenade is missing from the scene of an explosion at a Los Angeles County Sheriff’s Department training facility that ...

Authorities are searching for a missing "military-style" grenade in connection with a second explosive device that detonated ...

Before the explosion, Los Angeles County Sheriff Robert Luna Luna said deputies were working on two “military-style” grenades ...

The federal Bureau of Alcohol, Tobacco Firearms and Explosives has taken over the investigation to find the grenade.

A Santa Monica police officer told detectives Arson and Explosives detectives believed two grenades found at the complex were inert, but took them to be destroyed and rendered safe.