A new system that will give the Government and emergency services the ability to send alerts directly to mobile phones launched earlier this month, and a new "siren" message is due to be sent out soon.
The Cabinet Office said the alerts system will "transform the UK’s warning and informing capability", meaning urgent messages can be quickly sent to almost 90% of mobile phones in any defined area.
The system will soon be tested across the UK, after successful trials in East Suffolk and Reading. The Government will send a nationwide alert next month, which will see people receive a test message on their mobile phones.