A teenage woman was injured by a knife-wielding attacker in the shadow of Alexandra Palace.
The victim, 18, was stabbed repeatedly in the attack close to a parade of shops in Nightingale Lane, Hornsey at 6.30pm on Wednesday.
Another man aged in his 20s was also found by paramedics and taken to hospital.
Both the victim’s conditions were described as non-life threatening by police.
There have so far been no arrests made.
A Scotland Yard spokesman said: “Officers attended along with the London Ambulance Service and London’s Air Ambulance.
“Two people, an 18-year-old woman and a man aged in his 20s, were found with stab injuries and taken to hospital. Their conditions were assessed as not life-threatening.
“Enquiries are ongoing to establish what happened.”