British Transport Police are appealing for information after man was randomly attacked on a train travelling to Dartford.
Officers investigating an assault which happened between 12.15am and 12.32am on May 18.
A 31-year-old man from London, who had boarded the train at Charing Cross, was assaulted by a fellow passenger as the train passed-by Hither Green.
PC Mike Willoughby said: “The offender, without provocation or warning, launched a vicious attack, punching the victim several times to the face and head causing swelling to the side of his head.”
Officers are in the process of carrying out a number of enquiries – including speaking to witnesses – and have managed to gain a description of the offender.
PC Willoughby added: “The offender was a white man, in his 30s and about six feet tall. He had short light brown hair and was wearing a red and white scarf and quarter length trousers.
“This was a particularly nasty incident, which was shocking for the level of spontaneous violence. I am determined to trace the man responsible and want to speak to anyone who may have information which could assist the investigation.”
If you recognise the description of the offender, or have any other information which could help, please call British Transport Police on 0800 40 50 40 or ring Crimestoppers, anonymously, on 0800 555 111. In all calls please quote log SSUB/B3 of 28/05/14.