Authorities are searching for a missing “military-style” grenade linked to an explosion that killed three Los Angeles sheriff’s deputies last week.

Los Angeles County Sheriff Robert Luna announced that one of the two grenades transported to the Biscailuz Center Training Academy prior to a deadly explosion remains unaccounted for.

LOS ANGELES - Only one of two grenades that were found at a Santa Monica apartment building storage unit last week detonated the following day in East Los Angeles -- killing three sheriff's detectives -- but the second grenade is missing,