The exact date and time for another emergency alert sent to their mobile phones has been revealed, and this time it will be ‘one of the biggest in UK history’.

On Sunday September 7 at around 3pm, mobile phones connected to 4G and 5G networks will vibrate and emit a siren sound for up to 10 seconds.

It is hoped the alerts will help save lives during major incidents, such as severe storms and even wildfires as heatwaves nearing 35°C are becoming increasingly common.

Minister Pat McFadden said: ‘From major storms to wildfires, this system could save your life in an emergency.

‘Just like the fire alarm in your house, it’s important we test the system so that we know it will work if we need it.

‘This test will be one of the biggest public safety exercises in our nation’s history.

‘Mark t

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