Fishermen in the small Japanese town of Taiji killed more than two dozen striped dolphins on Thursday, campaigners said, as global outrage over the slaughter grows.
Fishermen and divers caught at least 25 dolphins in a controversial Japanese fishing village Saturday, according to environmentalists, who said the process was captive selection ahead of a mass slaughter.
Militant anti-whaling activists Sea Shepherd said they had zeroed in on a Japanese fleet Monday and captured evidence that four whales had been slaughtered, alleging the ships were found inside a Southern Ocean sanctuary.
Militant anti-whaling group Sea Shepherd on Monday dismissed as a "sham" Australian government plans to track Japan's annual whale hunt by air instead of by sea, saying it was a toothless and "cowardly" response.
The haul from Japan's whaling mission in the Southern Ocean was a "record low" this year, a government minister said, blaming "unforgivable sabotage" by activists.
Japan's fisheries minister said Tuesday his country will never stop hunting whales, despite fierce criticism from other nations and violent clashes at sea with militant conservationists.
Environmental campaigners from the militant Sea Shepherd group said on Wednesday a Japanese whaling ship had "rammed" its vessels in a skirmish in the Southern Ocean.
Militant environmentalists Monday accused Japanese whalers of attempting to crash into their ship as they tried to prevent harpoonists from hauling a slaughtered whale on board.
The US Supreme Court has denied a plea from anti-whaling group Sea Shepherd to end restrictions on its movement as Japan's whalers accused the activists of violating orders to stay away.
The Sea Shepherd conservation group asked the US Supreme Court on Monday to lift an order forcing it to steer clear of Japan's whalers, who are seeking legal reprisals over harassment at sea.