The captain of the Solong cargo ship who was arrested after crashing into an oil tanker off the coast of England is a Russian national, the ship’s owner Ernst Russ said Wednesday.

Motin was the master of the Ernst Russ-operated 804-teu Solong (built 2005) that collided with a Stena Bulk tanker on Monday off the northeast English coast. UK prosecutors named the seafarer who died in the collision as Mark Angelo Pernia, a Filipino crew member on the Portuguese-flagged Solong.

The cargo ship that collided with a US tanker carrying 220,000 barrels of jet fuel for the US Army was captained by a Russian national.

The police in Britain detained the ship’s captain on suspicion of gross negligence after it crashed into an oil tanker that was being operated by the U.S. Navy.

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 detained captain of a cargo ship which struck a tanker chartered by the US military is a Russian national, the owners of the container vessel said on Wednesday, as investigators sought to determine why the North Sea crash happened.

The 59-year-old man was arrested after a container ship struck an oil tanker in the North Sea on Monday. A crew member was presumed dead after an extensive search was called off.