The government will be carrying out a national test of the UK Emergency Alerts system on 7 September 2025 at 3pm. All compatible 4G and 5G mobile phones and tablets will receive the alert. The alert will be a really loud siren-like sound - we've added a video so you know what to expect. For people living with dementia the sound could be reminiscent of past traumatic events such as air raid sirens or times they may have been involved in a fire and the alarm has sounded. This could be a potentiall

The UK government is testing the Emergency Alerts system on Sunday 7 September 2025 at 3pm. Your mobile phone or tablet will vibrate and make a loud siren-like sound, even if it’s set on silent. The alert message will confirm this is a test and that you do not need to take any further action. Regular testing ensures the system is functioning correctly, should it need to be used in a life-threatening emergency. Find out more at gov.uk/alerts. You can opt out of the Emergency Alerts, including the