BRITISH Transport Police are seeking help to identify a man suspected of being involved in an attack on football fans and passengers on a train.

The suspect was captured on CCTV shortly after an incident on board a train carrying supporters to a match between Charlton and Crystal Palace on September 1.

A gang of around 40 males boarded the train at Sydenham station at 2.20pm and began a series of random attacks on passengers within two carriages of the train.

Police have already made 15 arrests in Kent, South London and Sussex in relation to the attacks, and are asking anyone with information about the man pictured to contact them on 0800 405040.