A teenager remains in a critical condition in hospital after being stabbed in Woodford last night.
Emergency services were called to the underground station at around 5.30pm.
Two teenagers are believed to have been approached by another group of teenagers who asked where they were from.
The victim, thought to be 18, was then stabbed before the group fled in the direction of St Barnabas Road.
The victim remains critical in hospital.
No arrests have been made.
The station was partially closed yesterday evening.
Tags: Woodford, Redbridge