Two teenagers are recovering in hospital after they were stabbed in a Bristol city street.
Police officers cordoned off the scene to hunt for clues
The attack happened shortly after 1730 GMT on Tuesday in Mina Road, St Werburghs.
The two 19-year-olds had gone to visit a friend in Gatton Road when somebody called at the address and asked to speak to the occupier.
As he was getting ready to go out, his two friends went outside and were confronted by a gang of six to eight youths aged 16 to 18.
The teenagers were both stabbed, and suffered collapsed lungs. Their attackers ran off along Mina Road.
The pair were taken to the Bristol Royal Infirmary, where one of them had to undergo emergency surgery overnight.
But police say their injuries are not thought to be life threatening, and both are recovering.
Officers investigating the assault were hoping to speak to them on Wednesday.
They say the road would have been extremely busy at the time of the attack because of rush hour traffic, and they have appealed for witnesses to come forward.