British Transport Police are appealing for more information after a video showing a violent altercation on a London tube train was uploaded online.
The footage was first uploaded on Wednesday, 9th January but is believed to have been filmed on Tuesday, 8th January.
The time the incident took place is unclear at this stage. According to the account user the altercation began after 'a guy steps on this womans feet and she gets angry about it and calls him a "DIRTY AFRICAN"!!!!!!!!' [sic] The man then gets up and hits the woman before being restrained by other passengers.
A BTP spokesman said: "There is an allegation of abusive behaviour by the woman towards the man, but that doesn't justify a violent response. The man and woman pictured in the images are seen arguing with each other on the video and we're keen to speak to both of them to get their version of events. We urge them or anyone who knows them, as well as passengers who were on the train at the time, to come forward so we can begin to build a full picture of what exactly took place."