This is the moment a man and woman were brutally assaulted on a train after returning home from Notting Hill carnival.
The pair of revellers were accused of throwing food at a fellow passenger before they were attacked.
In a video published to Facebook, a woman approached the pair asking if they had chucked a sandwich at her.
After they denied the act, which was not caught on camera, she told them: ‘Don’t make me take of my wig, I will punch you into next week.’
In the video, the attacker then takes her wig off and grabs hold of the white woman and repeatedly punches her in the head
The alleged victim’s companion appears to try and pull the woman off when a hooded man intervenes
One of the alleged victims – a woman wearing a pineapple shirt – argued back to the woman.
In the video, the attacker then takes her wig off and grabs hold of the white woman and repeatedly punches her in the head.
The alleged victim’s companion appears to try and pull the woman off when a hooded man intervenes.
The hooded male gets the man – who is not fighting back – into a headlock and wrestles him to the ground.
Commuters appeared unphased by the display, with two middle-aged men leaving the carriage rather than helping the victims.
Eventually a commuter split up the two woman, who continued arguing.
British Transport Police said they were aware of the incident but no arrests have been made.
British Transport Police have been made aware of the incident after it was widely shared online.
A spokesperson said: ‘We are aware of footage circulating on social media showing an assault on board a Chiltern Train.
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‘We believe it relates to an incident which took place on a train between London and Birmingham Snow Hill at 9.50pm on 27 August.
‘An investigation into this incident is underway, no arrests have been made at this time.
‘Anyone with information is asked to contact BTP by calling 0800 40 50 40 or texting 61016.’