Firefighters from the shipyard and coastal departments in Maine and New Hampshire spent Wednesday night and early Thursday fighting the fire on the USS Miami. Seven firefighters and crew members were hurt, but not badly. The cause of the fire is not yet known.
Rear Adm. Richard Breckenridge, commander of Submarine Group Two, said firefighters isolated the flames so they would not spread to nuclear propulsion spaces. There was nuclear fuel on board the sub, but the reactor has been shut down for two months and was unaffected.
The firefighters battled intense heat, smoke and noxious fumes in cramped spaces, Breckenridge said.
"There are a lot of heroes that worked together to save the ship," he said.
Crews responded at about 5:40 p.m. Wednesday to the USS Miami, which was in dry dock at the Portsmouth Naval Shipyard on an island in Kittery, near Portsmouth, N.H. It was not clear how many people were aboard at the time. The submarine is in the third month of a 20-month maintenance period.
Breckenridge said the fire started in the four forward compartments, which include living and command and control spaces. No weapons were on board.
The USS Miami has a crew of 13 and 120 enlisted personnel. It arrived at the shipyard on March 1 to undergo maintenance work. It was commissioned in 1990 and its home port is Groton, Conn.