SAN DIEGO, Calif. (KSWB) -- A bomb squad disarmed a World War II-era hand grenade that was found Monday underneath a house in Barrio Logan.



Plumbers working beneath a home in the 3100 block of Boston Avenue reported seeing the grenade around 4:15 p.m., according to San Diego police watch commander.



A team of bomb technicians deactivated the grenade, then took it to Marine Corps Air Station Miramar for disposal, the San Diego Fire-Rescue Department spokesman Lee Swanson said.



It was unclear how the weapon wound up beneath the home.



Authorities did not block any roads and no one was injured.