Tweet shows crowd at Manchester arena as people escape

MANCHESTER, ENGLAND (RNN) –  Manchester Police say there are “fatalities” after an incident at the Manchester Area on Monday night. 

Police said there were reports of an explosion, but there has been no confirmation of that report. 

They are warning people to stay away from a Manchester arena.   

"There were people pushing up the stairs, people obviously running, climbing over the chairs" trying to evacuate the concert where pop singer Ariana Grande had just finished performing, a witness told Britain's Sky News. 

Twitter images showed emergency vehicles responding to the arena where the concert was taking place.  

Network Rail said train lines out of Manchester Victoria were blocked, the BBC said in a report. 

Manchester is about 260 miles northwest of London. The Arena seats about 21,000 people. 

Artist BIA, who also performed, said in a tweet that she is OK.  

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