Beijing warned two of its Asian neighbors on Tuesday to stop agitating in the South China Sea, after a Japanese military patrol plane circled over areas during a drill with the Philippines. The areas are claimed by China.

According to Japanese and Philippine officials, a Japanese P3-C Orion surveillance plane, with three Filipino guest crew members, flew at an altitude of 1,524 meters over an area where the Philippines has competing claims.

The plane was accompanied by a smaller Philippine patrol aircraft.