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The Guardian - UK
The Guardian - UK
Politics
Dan Milmo and Alex Hern

Why did some people get the UK emergency alert late – or not at all?

An Apple iphone is held up in front of a red London bus by Clapham Common in south London displaying a UK Government emergency alert message at 3pm
Phones around the UK sounded and vibrated an alarm at 3pm on Sunday for 10 seconds. Photograph: Gill Allen/Shutterstock

On Sunday, millions of phones blared an emergency signal simultaneously under a UK-wide government test. However, a number of handsets received the alert late – or not at all.

Here we answer your questions on what happened.

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