The Unitary Police Service received a notice on Wednesday (7 March) regarding an operational event at Yangjiang Nuclear Power Co Ltd.

The notice was given by Guangdong Province’s Emergency Management Office, via the mechanism established under the “Guangdong-Macao Cooperation Consensus in Case of a Guangdong Nuclear Power Plant Emergency”.

On 6 March, Unit 1 of the Yangjiang nuclear power plant was undergoing planned maintenance, when staff accidentally activated an alarm of the monitoring system during work to clear a system blockage. The monitoring system was immediately brought back to its normal condition.

According to the International Nuclear and Radiological Event Scale, measured over seven levels, it was a “Below Scale”, i.e. “Level 0" event. This meant it had no significance in terms of either the safe operation of the nuclear power station, the health of its staff, the safety of the nearby public, or the protection of environment.