Emergency alert test: Millions of phones in UK sounded an alarm and vibrated for 10 seconds
The test, which sounded a minute earlier than advertised, was accompanied by a message telling people about the service.
Sunday 23 April 2023 15:54, UK
The test, which sounded a minute earlier than advertised, was accompanied by a message telling people about the service.
Sunday 23 April 2023 15:54, UK
