Phones across the country play siren and vibrate in latest test of service for use during emergencies

Millions of UK phones to sound siren in national emergency alert test, part of government resilience efforts.

The play is one of many public events that will be interrupted on Sunday as ministers carry out a nationwide test of the service. At 3pm millions of mobile phones will vibrate and…

Millions of phones will emit a siren sound and vibrate during the drill

It marks the second test of the national emergency alert system after the first in 2023