Millions of mobile phones to get imminent emergency alert from Government as unprecedented alarm sent

A statement from the Cabinet Office said that Britons’ mobile phones will make a loud siren-like sound – even if they are set on silent.

The sound and vibration will last for about 10 seconds, the Government has said.

It’s set to be the largest use of the system outside a test scenario, with the last having come through in April 2023.

The areas to be alerted include:

• Devon;
• Bath and North East Somerset;
• Bristol;
• North Somerset;
• South Gloucestershire;
• Somerset;
• Isle of Anglesey;
• Gwynedd;
• Conwy;
• Ceredigion;
• Pembrokeshire;
• Carmarthenshire;
• Swansea;
• Neath;
• Port Talbot;
• Bridgend;
• Vale of Glamorgan;
• Cardiff;
• Monmouthshire;
• Newport.

More to follow…