A 19-year-old man has been stabbed to death in Barking.
Police appealed for help as they hunt the killer after they were called at 10.11pm on Saturday on Abbey Road.
Medics battled to save the teen but he was pronounced dead at the scene about 40 minutes later, at 10.55pm.
The Met said: “Officers attended along with London Ambulance Service and found a 19-year-old man suffering from stab wounds.”
His next of kin have been informed, a post-mortem examination is due and a murder investigation has been launched.
“No arrests have been made at this early stage. Enquiries are ongoing,” said a spokesman.
Any witnesses or anyone with information that may assist the investigation should contact HMCC officers via 101, quoting ref 7838feb03.
To remain anonymous call Crimestoppers on 0800 555 111.