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Emergency alert to be sent to smartphones in UK test
A test message will be sent to smartphones on 7 September, after a previous test revealed technical issues.
It will see compatible phones vibrate and make a siren sound for 10 seconds while displaying a message at 15:00 BST on 7 September, even if they are set to silent. It said September's test is intended to ensure the system works well and to make sure people are familiar with the alerts, in line with other countries that also use them, like the US and Japan. Tracey Lee, chief executive of Plymouth City Council, said it had been an "invaluable tool" and provided residents with "clear information at a critical moment".
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