Authorities in Liverpool, England have expressed concerns over possible riot as thousands of Justin Bieber “Beliebers’ have stormed the Liverpool hotel he was staying at in hopes to take a glimpse of their teenage pop idol.

Justin Bieber is then trapped inside his $1,200-a night-room hotel called, Hard Days Night, in the Beatles birthplace in Liverpool, when warned by the authorities to not set foot outside his room to avoid riot.

“Justin and his team are being told they can’t leave the hotel and can’t be seen on any balconies or they will be arrested for inciting a riot,” Justin’s rep told Access Hollywood, according to TodayMSNBC.com

Bieber’s camp asserted that they are following police orders.

The rep said, “They are complying with police demands. Hey it’s Liverpool ... home of the Beatles!”

Hundreds of police authorities are stationed outside the Liverpool hotel to control the crowd. Bieber is scheduled to play at the Echo Arena in Liverpool on Friday.

Liverpool is the home of the Beatles and Mirror.com described the situation as the same teenage mania brought by the 1970s sensation.

Watch the video [above] obtained by TMZ.

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