BEIJING - Pollution from Japan's crippled Fukushima nuclear power plants are not threatening China's territorial waters,China's maritime authority said on Thursday.

A State Oceanic Administration press release said radioactive contaminants were detected in waters and fish in the ocean southeast of Fukushima, but that no impact on Chinese waters had been reported.

The latest data was collected via a 40-day monitoring of the Western Pacific Ocean conducted by the administration from April to June.

The administration has carried out regular monitoring of the ocean since the Fukushima nuclear accident in March 2011.