Construction workers at the San Diego International Airport’s Terminal 1 dug up a grenade Thursday, prompting a response from law enforcement. The grenade was old and inert, meaning it had been hollowed out as a training tool and did not have the potential to explode,

Before the new Terminal 1 opens later this year, people should plan for another round of construction-related traffic interruptions when driving in and out of the airport.

San Diego International Airport construction workers discovered what they think is "an old, inert hand grenade" near Terminal 1, a Port of San Diego official said Thursday afternoon. Airport operations are proceeding normally as of right now,