The second UK emergency alert was triggered across the country on Sunday, with the government sending a message to millions of smartphones across the country

At 3 pm today (Sunday, September 7), Brits across the UK would have heard a loud siren-like sound emanating from their phones, as the government conducted a nationwide test of an early warning system. ‌

This marks the second national test of its kind , with nearly everyone owning a mobile phone or tablet receiving the alert. The alert is designed to warn Brits of potentially life-threatening disasters such as severe weather conditions or terrorist attacks. ‌

It's expected that almost 100 million phones will have received today's alerts. However, not everyone will have been alerted, leading to some confusion. Here's why yo

See Full Page