The search continues, however, for 11 other crew members who were onboard the Jascon 4 anchor-handling tug when it capsized in heavy seas off Delta state on Sunday.
It had been feared that all 12 onboard the unit, which was assisting a tanker at the time of the sinking, had been lost.
However, a statement from Nigerian vessel owner West African Ventures, which lists the tug in its fleet, confirmed the unlikely rescue of one crew member.
"We are able to report that divers have found and identified one survivor, Mr Okene Harrison.
