People urged to 'keep calm' as emergency alert system launches in the UK

Millions of phones across the country will emit a loud noise and vibrate for about 10 seconds at 3pm to trial the life-saving system.

Person holding a phone

Millions of phones will emit a loud noise and vibrate for about 10 seconds at 3pm on Sunday (Image: Getty)

Millions of mobile phones will sound a loud alarm this afternoon as Britain’s emergency alert system is tested. But new Deputy Prime Minister Oliver Dowden has urged people to “Keep calm and carry on!”.

Millions of phones across the country will emit a loud noise and vibrate for about 10 seconds at 3pm to trial the life-saving system.

The alert, revealed by this newspaper and modelled on ones in the US and Canada, will be used in life-threatening situations such as flooding and wildfires.

As well as an alarm sounding, a text message will say: “This is a test of Emergency Alerts, a new UK government service that will warn you if there’s a life-threatening emergency nearby.

“In a real emergency, follow the instructions in the alert to keep yourself and others safe. Visit gov.uk/alerts for more information.

“This is a test. You do not need to take any action.”

Users will be prompted to acknowledge the alert by clicking the message.

Mr Dowden, who replaced Dominic Raab as Deputy PM on Friday, said: “This is no different to testing a fire alarm.

“It’s a bit of a nuisance – but you wouldn’t want to leave it until a real-life emergency to test it for the first time.”

But the drill has come in for criticism for its timing and potential impact. Drivers have been warned it will still be illegal to pick up their mobiles during the trial. The AA said motorists may prefer to switch them off before the test to avoid a £200 fine.

And domestic violence campaigners have raised fears it will put people in danger by revealing secret phones.

But the Government said it has been engaging with organisations working with vulnerable women and girls to ensure they are not adversely affected.

In exclusive polling for the Sunday Express, 86 percent of those quizzed were aware of the test, with 68 percent saying it was a good idea.

Only 32 percent planned to opt-out or switch their phones off. With several major sporting events taking place on Sunday, spectators have been warned the test could briefly disrupt their viewing.

Organisers of the World Snooker Championship at the Crucible in Sheffield will pause play just before 3pm to allow for the alert.

The test also coincides with the later stages of the London Marathon and the end of half-time in the 2pm kick-off Premier League ties at Bournemouth and Newcastle United. Theatre and cinema-goers will be told to switch off their phones before shows start.

People who do not wish to receive the alerts will be able to opt out in their device settings, but officials hope the life-saving potential of the messages means that users will keep them on.

Would you like to receive news notifications from Daily Express?