UK tests first-ever phone-based emergency alert; here's what the message said

The UK government issued a “Keep Calm and Carry On, this is just a test” message for its first-ever life-saving Emergency Alerts warning system, sent to every 4G and 5G enabled smartphone device in the country on Sunday.

A major awareness campaign was launched at 3 pm local time to ensure the British public was aware of the new system's test. The alert has been described as an additional tool in Britain's resilience toolkit when there is an imminent risk to life – such as floods or wildfires.

“Keep Calm and Carry On” is a historic phrase issued by Britain’s Ministry of Defence during World War II and has been associated as a quintessentially British saying ever since. It has now been used officially once again as part of the awareness campaign around the new text-based alert system being trialled as an additional safety tool.