Play video Sea Shepherd films whale slaughter 1:02
Graphic footage of whales being butchered onboard the Nisshin Maru inside the Southern Whale Sanctuary. - Footage, Sea Shepherd.
Anti-whaling group Sea Shepherd is pursuing the Japanese fleet after finding all five of its vessels in the Southern Ocean and evidence of whale kills.
The Sea Shepherd fleet, comprising the Steve Irwin, the Bob Barker and the Sam Simon, is now trailing the Japanese ships in a bid to disrupt or shut down their whale-killing operations.
The Steve Irwin's helicopter first spotted the Japanese vessel, Nisshin Maru, in New Zealand's sovereign waters in the Ross Dependency Antarctic region and inside the internationally recognised Southern Ocean Whale Sanctuary.
The Sea Shepherd group says it has footage of three dead protected minke whales on the deck of the Nisshin Maru, taken when the factory ship was first found.
Bloody business ... an image of the deck of a Japanese whaling boat. Source: Supplied
A fourth whale, also believed to be a minke, was being butchered on the deck.
The Sea Shepherd group says its fleet will do what it can to ensure no more whales suffer at the hands of the Japanese.
"Sea Shepherd will remain relentless in driving these fake, desperate and subverting 'scientists' back to Tokyo,'' the Steve Irwin's captain, Sid Chakravarty, said.
Last June, the New Zealand government joined the Australian government's challenge to the legality of Japan's whale hunt in the Southern Ocean Whale Sanctuary at the International Court of Justice.
The Abbott government in not getting between the harpoons and the whales to stop the whaling is ignoring an Australian Federal Court injunction against the Japanese whale slaughter ..
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