Emergency services were called to an incident outside a shop in Sunderland.
Police and ambulance crews were called to Castleford Road where a suspected assault is said to have taken place.
A spokesman for the ambulance service said they were called to the street at 7.25pm on Friday and treated a man on the scene.
He was transferred to Sunderland Royal Hospital, his injuries are not thought to be life-threatening.
Northumbria Police were unavailable to comment.