At least 53 pilot whales were killed in Denmark’s Faroe Islands this week, according to a report by the Sea Shepherd organization – the same NGO that raised the alarm after a recent mass dolphin slaughter that outraged activists.

“Only 10 days after the massacre of 1,428 dolphins, another hunt has taken place in the Faroe Islands, taking the lives of 53 pilot whales,” the international marine conservation organization said on Wednesday.

The group received disturbing images documenting the new alleged killing from a Faroese local, Yahoo News Australia reported.

Dozens of slaughtered pilot whales can be seen lined up in rows on the quayside, with cuts on their bodies and trickling blood clearly visible in the pictures. The marine mammals were apparently killed in the waters near the village of Kollafjordur, part of the self-governing Danish territory.

“We have a few local volunteers who are anonymous but are very committed to documenting what they can and sharing it with us so we can get it out to the world,” Sea Shepherd representative Valentina Crast told the news outlet.

The latest images were shot by an islander who “really wants us to end these killings,” she said, adding that activists were “shocked and angry.”

The latest killing may have happened not as part of the annual tradition – unlike the now-infamous dolphin massacre of nearly 1,500 animals – but because of negligence, according to unconfirmed reports emerging in some outlets. Some of those reports suggest the whales in question were supposed to be under surveillance, with special sensors placed on them, but there had not been enough personnel to carry out the work.

A decision to destroy the mammals was made instead, although those in charge hadn’t apparently expected the pod to be that large, having initially assumed it comprised no more than 15 whales.

Sea Shepherd has been campaigning against ‘grindadráp’, the traditional hunt in the Faroe Islands, since the 1980s. It said it would continue protesting against the bloody ritual, which dates back over a thousand years. (RT)