Mobile network Three has responded after many of its users didn't receive the government's test emergency alert.
The government tested its new national emergency alert system today (April 23). The loud alarm was scheduled to ring at 3pm on all devices that were using 4G and 5G networks in the UK.
The alert rang for 10 seconds and displayed a message notifying phone users that no action was needed in response to the test. It is designed to warn the public if there is a danger to life nearby and will be used in the future for life-threatening situations including flooding and wildfires.
READ MORE: Confusion as emergency alert goes off before 3pm and some don't even get one
However, many people reported that today's test alert sounded early, late or not at all. Many people on the Three network said its phones did not sound with an alert.
Replying to a customer asking about the issue, the phone company's support page explained it was looking into it.
The tweet said: "We're aware that a number of customers have not received the test alert. We're working closely with the government to understand why and ensure it doesn't happen when the system is in use."
Speaking before the test, Deputy Prime Minister Oliver Dowden said the drill could be “annoying” but that it had the potential to save lives once in use. He told Sky News that the trial run was a “bit like when the fire alarm goes off at work”.
He added: “It’s a bit irritating at the time but in the future people could be grateful for it because in a real emergency, this could be the sound that saves your life".
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