Ship's cook Harrison Okene survives two days in four-foot air bubble under capsized boat

A ship's cook has survived two days under the sea trapped in an airlock in a sunken tugboat.

Shocked rescue divers found Nigerian Harrison Okene, 29, in the upturned Jascon-4 which capsized in a heavy Atlantic swell 60 hours earlier as it went to the aid of a refuelling oil tanker 20 miles off the coast