On Tuesday afternoon, Lerøy Seafood Group discovered a tuna in one of the cages at one of its production sites in Trøndelag, Central Norway.
So far, no salmon escape has been reported due to the incident.
Yesterday, on August 27, a 233-kilogram tuna was discovered by a subsea feeding camera at about seven-meter depth in one of the cages, according to a press release from the Norwegian Directorate of Fisheries.
Divers were called in to check the damage to the cage and repair the hole of about 0.5 meters in the net.
The Directorate of Fisheries has drawn up guidelines for catching and possible killing in such cases, and these were followed by the company.
The fish farming company has so far not reported salmon escapes as a result of the incident.
The salmon in the cage is just under one kilogram on average.