China's marine surveillance vessels continued routine patrols and law enforcement activities in territorial waters around the Diaoyu Islands on the East China Sea on Thursday.
Comprising of four ships, the fleet of the China Marine Surveillance, spotted four Japanese coast guard ships at 5:30 a.m. and radioed them to stop intercepting in China's law enforcement activities, according to the State Oceanic Administration.
The Japanese ships were told to immediately leave China's territorial seas.
The CMS fleet returned to the Diaoyu Islands waters Saturday on patrol mission after two typhoons left the area.
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