Video footage has surfaced showing a teenage girl drunkenly swearing at and threatening a group of men on a train - even slapping someone at one point.

At the start of the video, she can be heard shouting: "No I'm not kidding you, I'll f****** smash your face in, yeah? Yeah, you shut up now, didn't you bruv?"

One of the men can be heard replying: "Have you had a few too many Lambrinis tonight?"

To which the girl responds: "No I ain't. Do you all want a smack or something?"

She turns to one man in particular and says: "Do you want a smack, do you?", before slapping him round the face.

He tells her to behave herself, and gets out of his seat. She says: "What you gonna give it to me, yeah?" And he says: "Not I'm not, because you're a girl. You're taking the p***, now f*** off."

The girl continues on her tirade, daring another one of the men to hit her and calling them wimps.

She then appears to apologise to the man she slapped, but repeats that everybody should stop laughing at her.

It is thought the footage was shot back in January 2011, but it has resurfaced on the net, and the British Transport Police are looking for information on the girl in question.

A spokesman said that a "concerned" member of the public recently brought the video to their attention, and told the Daily Mail: "Although it is not clear exactly where or when the incident took place, we're still keen to hear from any of the men involved as well as anyone who recognises the woman.

"Everyone has the right to travel without fear of abuse or threatening behaviour and BTP takes this type of offence extremely seriously.

"Anyone with information about this incident should call British Transport Police on Freefone 0800 40 50 40 quoting background reference B13/LNA of 27/02/2013, or call the independent charity Crimestoppers, anonymously, on 0800 555 111. In an emergency, always call 999."

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