A French energy company says it is working to resolve a "performance issue" at a nuclear plant in China following claims of a potential leak.

EDF Energy confirmed that gases that had built up in a component of the plant were deliberately released.

It comes after CNN reported that the US government had been assessing reports of a leak at the Taishan plant.

The facility's Chinese part-owner, China Guangdong Nuclear Power Group, refuted claims of a leak on Monday.

AFP news agency reports the gases released were xenon and krypton.

The International Atomic Energy Agency (IAEA) announced it has "no indication that a radiological incident occurred".

(BBC)