Maersk Oil has been reported to police over a discharge of chemicals in the North Sea.
The oil unit of the shipping giant confirmed that the Danish Environmental Protection Agency (DEPA) had been in contact to confirm the decision.
It comes after Maersk self reported to the environment agency.
A spokesman for the firm said: “Maersk Oil has been notified by the Danish Environmental Protection Agency (DEPA) of its intention to ask the police to investigate Maersk Oil’s discharge of certain chemicals in connection with oil production in the Danish North Sea.
“DEPA’s decision follows Maersk Oil’s self-reporting to DEPA and the latest report, submitted by Maersk Oil on 7 August 2017.
“Maersk Oil will cooperate fully with DEPA and the Police. Maersk Oil will not make further comments while the investigation is ongoing.”
It is understood the report is in regard to the release of so-called ‘red’ chemicals in connection with oil extraction in the North Sea.
Four colors are used to classify chemicals used for oil recovery in Denmark and red is the second-most environmentally harmful class after black.