A 15-year-old boy has been rushed to hospital after he was stabbed metres from Charlton Athletic FC’s stadium.
The teenager was attacked near The Valley just after 4pm on Thursday.
The London Air Ambulance was spotted landing in the car park of the football ground in south-east London.
Three men in their early 20s have been arrested on suspicion of GBH in relation to the incident.
It comes after another 15-year-old boy was stabbed to death in Hackney, north-east London, on Wednesday night.
A Police spokeswoman said: “Police were called by LAS at 4.13pm on Thursday, May 2 to Valley Grove following reports of a stabbing.
“A teenage boy, thought to be 15, was found with stab injuries.
“He was taken to hospital where his injuries were assessed as not life-threatening.
“Three males, aged in their late teens to early 20s, have been arrested on suspicion of GBH and remain in custody.
“Officers from the South East Command Unit investigate. Enquiries into the circumstances continue.”