The following is an appeal from British Transport Police;
Can you help us identify five youths we d like to speak to after a man was assaulted on board a train travelling between Newark and Peterborough?
A 22-year-old man was punched to the floor and assaulted by a group of five youths on the train, at around 1.10pm on Saturday, 14 November 2015.
The man, from Peterborough, was sat at a table on the train with his girlfriend when a group of approximately eight male youths boarded. Two members of the group sat down across from the couple and began making inappropriate sexual comments towards them both.
As the couple got up to move seats, one of the group punched the victim and he fell to the ground where he was punched several times by other members of the group.
DC Sarah Trotter from British Transport Police said: The victim sustained bruising to his head following the attack and has also been left extremely shaken
Not only was this violent and completely unprovoked behaviour of the group totally unacceptable, but the language and sexual comments they were using towards the couple were deplorable.
We have followed a number of lines our enquiry and now are releasing CCTV images of five youths who we believe may have more information about what happened. I d urge anyone who knows them to get in touch.
Anyone with information about the incident can call BTP on 0800 40 50 40 or text the force on 61016 quoting reference MSUB/B6 of 1/2/16.
Alternatively, information can also be given to the independent charity Crimestoppers anonymously on 0800 555 111