Millions of UK residents are being warned that their mobile phones will vibrate and let off a loud siren come April 23 at 3pm, as the Government test a new national alert system - which in future is intended for use in life-threatening situations.
All with a 4G or 5G mobile phone will receive the message directly to their cellular device - which will be accompanied by a loud sound and vibration lasting up to ten seconds.
It is also reported that phone numbers will have to acknowledge and swipe or click the alert before they can continue to use their phone. Similar schemes across the United States, Canada, Japan and the Netherlands have influenced the system, which is soon set to come into place across the UK.