A 17-year-old boy has been stabbed to death in Brockley, south London.
Police were called to reports of a fight at Spalding House on Turnham Road around 6.15pm, where they found the victim and another teenage boy with stab wounds.
The pair were airlifted to hospital but one of the boys died shortly afterwards, with the other in a stable condition.
Witnesses told ITV News the attacker was male, and they saw him run from the scene, dropping his phone.
Police say no arrests have yet been made.