At least seven people were wounded after a fire broke out overnight on a US Navy's nuclear-powered submarine, the Navy said on Thursday.
The submarine is docked at a shipyard in Maine state, northeast of the US.
The fire broke out shortly before 6pm on Wednesday on the USS Miami, an attack submarine, Xinhua quoted Rear Admiral Rick Breckenridge, commander of Submarine Group-2, in a statement.
The injured included three Portsmouth Naval Shipyard firefighters, two crew members and two civilian firefighters providing support. All have been released after medical treatment.
The cause of the fire has not yet been identified, Breckenridge said. A full investigation is taking place.