No need for alarm during Saturday's routine exercise
A routine test of the Island's Public Warning system will take place this morning (Sat).
All 31 alarm sites will sound a steady note, for a duration of 30 seconds, at 11am.
No action is required by residents - the test is a regular exercise which takes place several times per year.
In a real emergency, such as a freak weather event or catastrophe across the water, the sirens will ring out for 3 minutes.
If such an event was to occur, the Civil Defence service advises people to stay indoors and tune in to local radio stations for updates.

'Too early to tell' what caused fire
Firefighting foam may have killed fish in Silverburn River
Additional road closure for TT filming ahead of MGP qualifying
'Knives and sharp implements' left outside charity shops