CCTV images have been released of three men police want to speak to in connection with an attack which left a train passenger with a broken jaw.

The innocent man was travelling on a train out of King’s Cross when he was assaulted and robbed by a gang.

The attack happened sometime before the train arrived at Hatfield, where the attackers fled.

The 34-year-old victim, who also suffered chipped teeth, managed to raise the alarm and was treated by paramedics in WGC, before being taken to the QE2 Hospital.

The attack happened at around 11.45pm on Friday, February 5.

Call police with information on 0845 33 00 222.