The nuclear emergency siren at Portsmouth’s naval base will be sounded tomorrow.
The alarm is due for a routine test at 9.30am on Friday, June 28.
The sound, a wavering tone, will last for one minute.
A spokesman for the base said: ‘By agreement with the local authorities, the siren is tested three times a year – on the last working days in February, June and October – as part of the nuclear accident response plan for the naval base and in accordance with Portsmouth and Gosport councils’ nuclear safety plan.’
For more information about the nuclear emergency plan for the area, click here.