Inquiry into death of sailor on board Royal Navy ship
Police are investigating the "sudden death" of a 20-year-old Royal Navy sailor on board HMS Cattistock.
Officers were called to Portsmouth Naval base on Sunday afternoon. They said the death on board the minesweeper was not being treated as suspicious.
Post-mortem tests will try to establish the exact cause of the sailor's death.
The Royal Navy is also investigating. Police said they had not yet formally identified the man but his next of kin had been told.