A teenage girl had her jaw broken in two places when she was savagely beaten by a gang of youths for reportedly removing her headscarf.

A shocking video shows the mob attacking the 15-year-old as teenagers take turns to slap her until she spits blood.

The savage attack happened at a shopping centre in Vienna, Austria where Sharia police from the Muslim Chechen community are known to operate.

A horrific video showing a group of teens savagely beating up a 15-year-old girl has recently emerged online, racking up millions of views in just a couple of days

Two girls can be seen repeatedly slapping their victim as she defiantly stands with her hands in her pockets, refusing to run or fight back fearing the beating would get worse.

A third girl with brown hair, wearing a white jacket, was then seen rubbing her hands together before slapping the teen.

Then the victim was hit by a boy and was seen spitting out blood onto the floor.

She was reportedly taken to hospital following the attack last Wednesday and was being treated for a double jaw fracture.

The footage showed a gang of four youths taking turns to assault the teenage girl while she stood with her hands in her pockets

The video was posted to Facebook following the attack and has since gained close to three million views.

The Austria edition of The Local reported that four people were being investigated by the police.

Ringleaders of the gang are said to be a 16-year-old Chechen boy from and a 16-year-old girl from Austria.

According to reports, the girl, who was seen spitting blood at the end of the video, had her jaw broken in two places

According to the report, the Chechen boy went to the police on Saturday and said he was involved in the assault.

Vienna police spokesman Paul Eidenberger said: 'We know the youngsters, they were already involved in similar cases in Lower Austria.'