A chef for an oil company has survived three days trapped at the bottom of the sea after his boat capsized off the coast of Nigeria.

Harrison Okene managed to survive in a small air pocket, drinking Coca Cola.

His rescue came down only to chance, when he responded to the distant sound of nearby divers who were expecting to recover bodies from the boat.

Jed Chamberlain, from DCN Global diving company, described how the rescue unfolded.