AN innocent train passenger was viciously assaulted and robbed as he travelled home.

The 34-year-old man’s jaw was broken in two places and his teeth chipped as a gang of three thugs turned on him.

The man was on board a train out of King’s Cross and was attacked before it arrived at Hatfield were the attackers fled, at around 11.45pm on Thursday.

Detective constable Steve McBride said: “It appears an altercation took place shortly after the victim returned from using the toilet on board the train.

“He had left his bag on the seat and when he came back from the toilet he found a group of men going through the contents.

“After making an obvious objection to what was happening, the man then became the victim of a physical assault, which has left him with a suspected broken jaw and chipped teeth.”

The alarm was raised and the victim managed to leave the train at WGC, where he was treated by paramedics and then taken to the QE2 Hospital.

The British Transport Police are looking for three black men, in their mid to late 20s.

One is large and overweight, while the other two are of medium build.

They are believed to have boarded the train at Finsbury Park station.

Det con McBride added: “This was a violent and apparently unprovoked attack on a lone man who was simply trying to make his way home.

“We are conducting local enquiries as a result of what happened and I would encourage anyone with information to come forward.”

“Violence directed at law-abiding passengers will simply not be tolerated,” he added.

Anyone with information about the assault should call BTP on 0800 40 50 40.