A Russian national was revealed to be the captain of the cargo ship that collided with an American tanker off the coast of England, spilling U.S. military jet fuel into the sea.

U.K. police say the Solong cargo ship's captain, identified by the vessel's owner as a Russian national, was detained on suspicion of negligent manslaughter.

One crew member still missing as firefighters battle burning container ship following collision in the North Sea.