Navy explosive device lost at sea

An explosive device that malfunctioned during a Navy training exercise is missing in the ocean near the Hotel del Coronado and could pose a danger should it wash up on the beach, officials said.

The device is a time-delay demolition charge used to blow up enemy mines.

The Navy said it was attached to a fake mine during an explosives drill 300 yards off the coast Friday. The primary charge exploded as intended but did not trigger a complete detonation.

Officials said it would take great pressure and an ignition source for the device to explode, but anyone who comes across the explosive is asked to leave it alone and call 911.