Tokyo has been accused of "cutting off" all dialogue with Seoul, as bitter remarks between South Korea and Japan continued on Wednesday over their disputed islands.

Although Tokyo said its ambassador to Seoul will soon return to his office, analysts said they were concerned over the possibility of bilateral spats and retaliatory moves becoming constant.

Seoul-based Yonhap News Agency on Wednesday reported that Tokyo cut off "all South Korea-Japan dialogue channels" after South Korean President Lee Myung-bak visited the disputed islands on Aug 10, which Seoul calls Dokdo and Japan calls Takeshima.