
An emergency alert test has been carried out across the UK, with the alert reaching most UK phones.
The test was for an alert that could be used to warn about dangerous situations such as floods or terror attacks.
Some people reported that the alert went off earlier or later than planned, while others did not receive the alert at all.
In Wales, the alert included a translation error.
Those who do not wish to receive an alert in the future are able to opt out via their device settings.
Deputy prime minister Oliver Dowden said: "The Government’s number one job is to keep people safe and this is another tool in the toolkit for emergency situations, such as flooding or wildfires, and where there is a genuine risk to life. So it really is the sound that could save your life.
"I would encourage people to remember that today it is just a test; there is no need to take any action and you can simply swipe it away as you would any other message you receive."
National Police Chiefs’ Council Lead for Civil Contingencies, Assistant Chief Constable Owen Weatherill said: "During times of crises, it’s vital to warn and inform the public at speed. We look forward to further developing the use of the Emergency Alerts capability and the way it can protect and preserve life, as well as supporting policing’s wider response to critical incidents with partner agencies. Alongside partners, we will continue to listen carefully to public feedback and ensure the use of Emergency Alerts has a positive impact."
Image by Niek Verlaan from Pixabay