The incident was reported to police at 11.15pm on December 6 in Fernbank Avenue.
Officers were dispatched to the scene alongside the London Ambulance Service where a 16-year-old boy was found with injuries consistent with a stab wound.
His condition has been confirmed to be non-life-threatening or life-changing.
Whilst at the scene, officers aided paramedic colleagues in relation to a medical incident.
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At this time it is not believed to be linked to the stabbing, and there is no evidence to suggest the involvement of drugs.
An investigation is ongoing and no arrests have been made. An increased police presence can be expected in the area.
Anyone who has any information on this investigation asked to contact police on 101 quoting CAD 7709/06Dec or call Crime Stoppers anonymously on 0800 555 111.
