Detectives are appealing for witnesses after a murder investigation was launched following the death of a man in Wood Green.
Police were called at around 16:15hrs on Friday, 09 January to Maryland Road, N22 following reports of a fight and a person armed with a knife.
Officers attended and found a 19-year-old man suffering stab wounds. He was taken to an east London hospital where he is described as in a serious but stable condition.
Police were alerted to an 18-year-old man who had attended a north London hospital suffering stab wounds. He was subsequently pronounced dead.
Next of kin have not yet been informed.
A post-mortem examination and formal identification will be scheduled in due course.
The 19-year-old man who was taken to hospital with stab wounds has since been arrested on suspicion of murder.
Detectives from the Homicide and Major Crime Command led by Detective Chief Inspector Dave Whellams are investigating.
Any witnesses or anyone with any information can call police on 0208 345 3775 or Crimestoppers anonymously on 0800 555 111 or viawww.crimestoppers-uk.org.