A reported grenade found as police were serving a warrant at a Talmadge motor home turned out to be a dummy, San Diego Fire-Rescue Department (SDFD) spokesman Lee Swanson said.
The initial call came in around 4:25 p.m. Monday for a motor home on the 4400 block of Altadena, Swanson said.
National City Police (NCP) were serving a warrant on a man in a nearby apartment. As part of the warrant, they searched his RV. As they did so, they lifted a pillow and found what appeared to be a grenade.
Swanson said it was unclear who called it in, but a bomb squad staged to determine whether it is real, antique, a replica, live or not. NCP officials were cautious, Swanson said, because they believed the man had a history with explosives.
Once bomb squad units conducted an X-Ray, they determined it was a dummy.
Authorities surrounded the area for at least two hours, blocking off parts of streets to continue their investigation.
No further information was immediately available.