Anyone with a smart phones has been told to be aware of an emergency alert system test later today. At 3pm today (Sunday, September 7), mobile phones and tablets across the UK will emit a loud siren ...

Millions of mobile phones will blast a loud siren this week in one of the largest ever exercises of the government's national emergency alert system. The test will take place at around 3pm on Sunday, ...

Tens of millions of mobile phones in the UK received a message and sounded a loud alarm in the second nationwide test of the government's public alert system. The test came through on mobiles ...