US diversified owner Seacor Holdings has put out a statement on its liftboat capsizing in the US Gulf on Tuesday but had no further information on 12 unaccounted seafarers.

The US Coast Guard (USCG) found a body as the search continued on Thursday for them after Seacor Marine's 2,300-gt Seacor Power (built 2002) turned over.

The 39-metre vessel capsized 12km from Port Fourchon on Tuesday afternoon amid a half-hour of 120 km per hour winds in the area, followed by hours of winds over 80kph.