Salmon farming giant Mowi has been fined NOK 3.7 million (€370,457/$450,732) by authorities in the Trondelag region of Norway for a March 2018 incident that saw 54,000 fish escape.

Norwegian aquaculture equipment group Egersund Net was fined NOK 750,000 (€75,093/$91,365) for the same incident, the Norwegian Directorate of Fisheries said Friday.

Police officials in Trondelag issued the fines to the companies, citing violations of federal policies on escape prevention from aquaculture facilities.

Mowi accepted a fine of NOK 3,750,000 (€375,463/$456,823) and Egersund Net accepted a fine of NOK 750,000 (€75,093/$91,365) the report states.