ENTERTAINMENT
03/10/2011 11:52 am ET Updated May 25, 2011

Justin Bieber Trapped In Hotel, Possible Riot Situation (PHOTO)

Justin Bieber is currently holed up in his hotel in Liverpool, England -- with thousands of screaming girls outside ... and cops have warned Bieber that it could turn in to a "possible riot situation" and have even threatened to arrest him.

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