Salvage crews headed to a damaged jet fuel tanker off the coast of England on Tuesday, a day after it was hit by a container ship in an unexplained collision that has raised concerns of an environmental disaster.

On Monday, in a tragic incident, a Portuguese-flagged cargo vessel called Solong, carrying toxic chemicals, crashed into a US-flagged tanker carrying jet fuel for the US Army off the UK coast. According to the reports quoting Solong’s owner,

A cargo ship smashed into a US-flagged oil tanker carrying jet fuel off the northeast coast of England on Monday, sparking a huge fire, a dramatic rescue effort and fears of environmental damage.