Police were called a little before half 3
London Ambulance Service sent an ambulance, incident responder, a medic in a car as well as the London Air Ambulance.
The male has been taken to a major trauma centre by air ambulance.
A Met Police Spokesperson said: “Police were called at approximately 15:25hrs on Friday, 24 September to reports of a male stabbed in Marlborough Gardens, Upminster.
“Officers and London Ambulance Service attended and found a male – believed aged in his mid-teens – suffering a stab injury.
“He has been taken to hospital for treatment.
“No arrests; enquiries into the circumstances continue.”
A London Ambulance Service spokesperson added: “We treated a person at the scene, and they were taken to a major trauma centre by London’s Air Ambulance.”
Anyone with any information is asked to call police on 101 or tweet @MetCC and quote CAD4545/24Sep. Alternatively, contact the independent charity Crimestoppers on 0800 555 111.
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