I am so sorry to bring you the sad news that London Now has reported that the young victim has died.
A London Ambulance Service spokesperson said:
We were called at 2:25pm today (25 August) to reports of a stabbing at Brent Civic Centre, Wembley, HA9.
We sent an ambulance crew, paramedics in fast response cars and an incident response officer. We also dispatched London’s Air Ambulance.
Sadly, despite the best efforts of our crews, a patient was pronounced dead at the scene.