When it was last tested, the message that appeared on phones said: ‘This is a test of Emergency Alerts, a new UK Government ...

The Government has announced exactly when it will activate the alarm system, on every 4G and 5G phone in the country ...

At 3 p.m. local time on September 7, 85 million UK phones will blare a siren as part of a nationwide emergency alert test to prepare for future crises.