Horrifying footage has emerged showing a teenager being punched 20 times in the head on a bus.
The graphic video clip shows the male assailant raining blows continuously on his victim in Brighton.
During the 31-second clip a teenage girl is heard screaming “get off him, get off him now” during the brutal attack which is believed to have been unprovoked.
The footage, which was filmed by a woman on her phone, starts with the attacker walking over to the victim.
He leans over a girl, who was sitting with the victim, before starting to throw punches.
The attack, which is believed to have happened on October 2, is not thought to have been reported to police.
A Marie Sansom spokeswoman for Brighton and Hove Bus Company, told Mirror Online they were also unaware of the incident.
She said: "We have not been contacted by Sussex Police or by anybody involved, nor has anyone else brought it to our attention. The police have told us they have not received a report about an incident like this either.
"I'd encourage the victim or his family to come forward and report this assault to us so we can investigate it. As always, we will liaise with the police and offer any help they require."
