A 17 year old boy has been treated in hospital for stab wounds following an incident in Hurst Green on Thursday afternoon.
The stabbing is believed to have taken place on Nunappleton Way near to the footbridge over the railway line.
Police want to hear from anyone who was in Nunappleton Way, Hurst Green Road or Pollards Oak Road between 2.00 pm and 2.30 pm on Thursday, and who may have seen the incident unfold.