Japanese police have reportedly sought arrest warrants for three anti-whaling activists after their heated clashes with Japan's whaling fleet in the Southern Ocean last year.
Two Americans and a Briton from the Sea Shepherd group are said to have obstructed Japan's whale hunt through protest actions such as jamming a ship's propeller with a rope.
The Kyodo news agency says Tokyo's Metropolitan Police is looking at placing the three on an international wanted list. A police spokesperson declined to comment on the reports.
Protests last year against the whaling fleet outraged Japan, which called the activities "piratical, terrorist acts".