UK police: Confirmed fatalities at Manchester concert

BREAKING NEWS : Greater Manchester Police say there are deaths after a reported explosion at an Ariana Grande concert.

UK police said they were responding to a serious incident at Manchester Arena on Monday after reports of an explosion during an Ariana Grande concert.

A video posted on Twitter showed fans screaming and running inside the venue.

Greater Manchester Police tweeted asking people to stay away.

"Emergency services responding to serious incident at Manchester Arena. Avoid the area. More details will follow as soon as available."

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