It's being reported that a 19-year-old shop assistant was stabbed in the Wood Green Shopping City last night.
The man was found by a colleague in a service area not open to the public. He was taken to hospital and is in a 'critical' condition.
Following the stabbing the centre was shut down and some of the surrounding roads were closed.
No-one has been arrested but CCTV footage of the area is being examined and witnesses are being sought.