Air-raid siren sounds the ‘all clear’ videoAir-raid siren sounds the ‘all clear’ An archive recording of an air raid siren sounding the 'all clear' ...

Air-raid siren sounds the warning. Air-raid sirens first sounded the warning in London in September 1939. They became an almost daily part of life in the capital a year later during the height of ...

The Cabinet Office will push the notification to millions of people's mobile phones this evening. | ITV National News ...