Officials are on high alert in Liverpool at the moment, and it's all due to the presence of Justin Bieber.
The pop icon is trapped in his hotel room in England as we type this because hundreds of screaming girls are outside and police have warned Bieber to remain where he is, as a "possible riot situation" could break out if he walks outside.
Sources actually tell TMZ that cops will arrest Bieber for inciting a riot if he so much as steps on to the balcony.
Over two dozen guards have taken up position outside Justin's hotel, while surrounding roads have been shut down to handle the masses that continue to gather. It's a loud, difficult-to-control mess and we'll keep you apprised of whether or not Bieber ever sees the light of day again.
UPDATE: Bieber has Tweeted: "This is crazy. There are like thousands of people out there. Love everybody but gonna try and get some sleep. Please dont scream. lol."
UPDATE: The cops have allowed Bieber to wave to his fans on the balcony. However, an appearance by their music god has not caused the crowed to disperse just yet.