The Japanese whaling fleet has suspended its Antarctic Ocean hunt because of obstruction by Sea Shepherd Conservation Society vessels, a Fisheries Agency official said Wednesday.

Jiji Press reported government officials are considering having the fleet return home earlier than regular years amid the moves by the marine animal rights group.

"The Nisshin Maru (whaling fleet mother ship) has been chased by Sea Shepherd vessels since Feb. 10 and thus the fleet suspended whaling since then," said Tatsuya Nakaoku of the Whaling Section of the Fisheries Agency's Far Seas Fisheries Division. "We are considering several options (to deal with the current situation), but nothing has been decided."