In the early hours of the seventeenth, two ships of the China Coast Guard intruded into Japan’s territorial waters off the coast of the Senkaku Islands in Okinawa Prefecture to match the actions of two Japanese fishing boats. These two ships have been within the territorial waters for about 17 hours on the sixteenth, and the Japan Coast Guard continues to warn them to go away the territorial waters instantly.
Source
Off Senkaku Two ships of the China Coast Guard invade territorial waters in keeping with the motion of Japanese fishing boats | NHK
