Royal Navy to test nuclear alarm at Portsmouth Naval Base – here's when it will sound
Portsmouth naval base will be sounding the two-tone nuclear alarm at 9.30am today as part of a routine check.
Residents are being warned that it is just ‘standard practice’ and not be alarmed if they are in or around the base and hear it going off.
Advertisement
Hide AdAdvertisement
Hide AdHMNB Portsmouth tweeted: ‘To anyone in and around #Portsmouth Naval Base: There will be a routine test of the two-tone nuclear alarm at 0930 today.
‘Nothing to worry about - just standard practice! #behindthewall @RoyalNavy.’
The alarm will sound for one minute but residents who hear it are being reminded that they need not worry.
Portsmouth naval base tests the alarm several times a year in February, June and October by agreement with various local authorities.