UK will test frightening 'Armageddon alarm' within weeks which will see thousands of people's phones flash and set off alarms

Millions will see their phone vibrate and sound an alarm as a warning of danger.

The system is designed to warn people if there is a 'danger to life' nearby.

https://www.dailymail.co.uk/news/article-11849317/UK-test-frightening-Armageddon-alarm-weeks.html