A 16-year-old boy has been arrested on suspicion of GBH after a man was viciously attacked on board a train out of Manchester Piccadilly railway station.
Police said the victim got into a 'verbal altercation with a boy who was speaking loudly on his mobile phone' - and was later punched in the head as he was about to get off the train.
The teenager, who hasn't been named by British Transport Police, was arrested on suspicion grievous bodily harm and taken into police custody to be interviewed, the force revealed on Wednesday.
