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Story summary
- The UK will test its Emergency Alerts system on September 7, 2025, at 3 PM, the first test since April 2023.
- About 87 million mobile devices will receive a 10-second siren and text message alert.
- The alert has been used five times in real emergencies, highlighting its importance for public safety.
- Charities caution that the alert may endanger domestic abuse survivors by exposing hidden phones.
- The test timing aims to minimize disruption to daily activities, though some interruptions may occur.
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