Police were called at 21:00hrs on Monday 12 April to reports of a stabbing in Grand Parade, Green Lanes, N4.
Officers along with London Ambulance Service attended the scene and found a 16-year-old man with a stab injury to his stomach.
The teenager was treated at the scene, before being taken to hospital. His condition is being treated as life-threatening.
Enquiries are ongoing to establish whether it may be linked to a nearby incident in Parkland Walk in Finsbury Park which happened at approximately the same time where a man was robbed.
The suspect, described as a black male, slim build, dressed all in black with a grey man bag was chased by officers, but ran off towards upper Tollington Road. A discarded a bag containing a firearm was found at the location.
A large crime scene remains in place and enquires continue. No arrests have been made.
Anyone with information is asked to ring 101 or you can tweet information to @MetCC quoting CAD 7114/12 April. Alternatively, contact the independent charity Crimestoppers anonymously on 0800 555 111.
Hard calls save lives. Are you close to someone on the fringes of knife crime? Do the right thing, please give information 100 per cent anonymously through the independent charity Crimestoppers. It can feel like a hard call, but it could save the life of someone you love.
No piece of information about knife crime is insignificant or too small. Any information you give to Crimestoppers can make a difference in reducing knife crime and the harm it causes to families.
They never ask your name and they cannot trace your call, your IP address or the device you use. Fill in their quick online form or call 0800 555 111. It could save a life.
