A shed that looked like a World War II-style bunker became engulfed in flames in Chula Vista Thanksgiving Day, according to Chula Vista Fire Battalion Chief Sean Lowery.
Flames were seen shooting from the shed, which sat in front of a three-unit apartment building in the 600 block of G Street.
Chula Vista, National City and San Diego fire crews quickly responded to prevent the fire from spreading to nearby homes. However, the bunker was burned to the ground.
"This is actually an out-building that kind of resembles an old World War II-style bunker, and it's been here in the city as long as any of us can remember," said Lowery.
He told NBC 7 the building has had some incidents in the past, but he did not detail what those incidents were.
Witnesses said there was a potential person of interest seen leaving the scene of the fire.
Police helped to block off the area to traffic as fire crews extinguised the flames.
No further information was immediately available.