It will be the moment when millions of mobile phones will vibrate and ring at the very same time. At about 3pm next Sunday, an official 'Emergency Alert' will be sent to all 4G and 5G-enabled phones ...

The national system for sending emergency alerts to mobile phones will be tested for the second time this afternoon, on ...

Tens of millions of mobile phones in the UK received a message and sounded a loud alarm in the second nationwide test of the government's public alert system.

The national system for sending emergency alerts to mobile phones in the UK is being tested for the second time.

An emergency alarm test is set to clash with Sunday matinee performances later this week. Mobile phones in the UK that are turned on will experience 10 seconds of sound and vibration at 3pm BST on 7 ...