The captain of the Solong cargo ship who was arrested after crashing into an oil tanker off the English coast is a Russian national, the vessel’s owner said Wednesday, as maritime experts search for answers.

The captain of MV Solong involved in the North Sea oil tanker crash is a Russian national, the shipping company revealed. The US-flagged MV Stena Immaculate was anchored off the Humber Estuary, 10 miles from Hull, when it burst into flames in a fireball after the Portuguese-flagged Solong rammed into it.

On Monday morning, about 13 miles off the coast of East Yorkshire, the Solong sailed into the US-registered tanker Stena Immaculate, which was carrying fuel for the US Navy. Fires broke out on board both vessels,

The captain of the container ship Solong, which crashed with another ship in the North Sea, is a Russian national, it has emerged.

Most of the jet fuel onboard the U.S.-flagged tanker Stena Immaculate that was hit by a container ship in a collision off Britain's coast remains contained and only two of the vessel's 18 fuel tanks have leaked,

Fears of an environmental disaster eased on Wednesday, two days after a container ship ploughed into a stationary U.S. fuel tanker off northeast England, as the vessel's owner said the detained captain was a Russian national.