A diver who died after off the coast of Suffolk on Friday has been named as Christopher Vanstone.
Mr Vanstone, who was 49 and from Brixton in London, had been diving about 17 miles offshore when he encountered problems.
A second diver helped to bring him to the surface but lifeboat crews from Great Yarmouth said he was unconscious and was not breathing.
Mr Vanstone was airlifted to the James Paget Hospital at Gorleston, Norfolk, but he was pronounced dead on arrival.
Suffolk Police said a post mortem examination carried out at the weekend had confirmed he died from drowning.
Officers said there were no suspicious circumstances following the death and that Mr Vanstone's fellow divers, and those on board the boat, had made "extensive efforts to save his life".
More top news
A vicar from Luton who wrote sexually explicit comments during conversations with children in an online chat room has been jailed.
Homelessness is on the rise, and more people are sleeping rough on the streets of Ipswich.
Essex Police say that they can't comment on Martin Goldberg's death, but there were indications of an attempt to destroy evidence.