The town of Broome on the coast of Western Australia has put its sister city, Taiji, Wakayama Prefecture, on notice: Stop the yearly dolphin slaughter or the relationship is off.

The local council in Broome voted unanimously Saturday to send a warning to Taiji to end its dolphin "harvesting," council head Graeme Campbell said Monday.

"The council respectfully advises . . . Taiji that it will be unable to fulfill its pledge as a sister town of Taiji while the practice of harvesting dolphins exists," Campbell told The Japan Times. The town will advise Taiji through diplomatic channels, he added.