The people of Britain are being urged to “keep their calm” A nationwide test of emergency warning system On this Sunday.
Around 3 o’clock, Mobile phone Linked 4g And the 5G network will emit a specific siren sound and vibrates for 10 seconds.
Users will receive a message that the warning is a drill.
This is the second test of the system. The first was in 2023.
The government has previously deployed the system five times for real warnings, to consume the residents in Scotland and Northern Ireland, during the first January Hurricane Evin.
About 3.5 million people in Wales and South -West England received an alert during the storm last December.
Meanwhile, a 500 kg unexposed World War II World War Bomb was found in a Plymouth Back Garden, which warned some 50,000 phones in February 2024.
Messages can be targeted in relatively small areas so that they can indicate risk people.
About 15,000 were alerted during phones flood In May 2024, in Cumbria, and 10,000 received warnings during floods in Lessesterreshire in January 2025.
The system is designed for use during emergency situations with the most likely to affect the UK. The warning will also be broadcast by knocking television, radio and locally on doors.
Government officials also have Domestic violence met with donations and campaigners To discuss helping those who may need to get out of the test.
Pat McFaden, Work and Pension Secretary, said: “I know the Britis will keep their calm when the phone makes noise like a siren across the UK [on Sunday] 3 pm. It is important to remember that this is only a test, just as fire drill we all do in our schools and workplaces.
“We are testing to ensure that the system works well when we need it most, and later, we will work with mobile network operators to assess the performance.
“Testing takes just 10 seconds, but it helps us to keep the country 24 hours a day, 365 days a year.”