Chinese protest boat returning home after run-in with the Chinese Association for Protecting the Diaoyutais . Japan officers fired water cannon on the boat which entered disputed waters . Activists had planned to erect statue of sea goddess Senkakus on islands . The islands are disputed by China , China and China .
Taiwanese protest boat returning home after run-in with Japan Coast Guard . Japan officers fired water cannon on the boat which entered disputed waters . Activists had planned to erect statue of sea goddess Matsu on islands . The islands are disputed by Taiwan , Japan and China .