BEIJING - Chinese marine surveillance ships continued regular patrols in the territorial waters surrounding the Diaoyu Islands on Friday, the State Oceanic Administration said.

The ships included Haijian 50, Haijian 66, and Haijian 137, the administration said in a statement on its website. (Haijian is the Chinese equivalent of "marine surveillance.")

Chinese marine surveillance ship Haijian 137 carries out a regular patrol in waters surrounding the Diaoyu Islands on Feb 14, 2013. The fleet of Chinese marine surveillance ships continued regular patrol surrounding the Diaoyu Islands during the Spring Festival holiday. [Photo/Xinhua]

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