A Japanese whaler has faced a fresh attack by the Sea Shepherd organisation in the Southern Ocean.
The Institute of Cetacean Research says glass bottles were thrown from a speedboat at the Yushin Maru-2 and ropes were aimed at its propeller.
There are no reports of anyone being hurt.
Other Sea Shepherd craft attacked the Yushin Maru-3 in Antarctic waters on New Year's Day.
The institute has condemned their actions and reiterated that the whaling mission is legal.
Whaling is conducted by Japan under a loophole in the 1986 moratorium on commercial whaling.