Police are continuing investigations as a teenager remains in critical condition after being stabbed.

Officers and the London Ambulance Service were called to Montesole Playing Fields, Pinner, last night (August 26) at around 6.05pm to reports of a stabbing.

At the scene the teenager, 18, was found with a stab wound and was rushed to hospital.

He remains in critical condition and his next of kin was informed.

While this is still at an early stage of investigation, police believe the victim was with friends when they were approached by another group of youths.

Police say a fight broke out between the groups and the victim was stabbed.

The motive for the attack is not known at this stage.

A crime scene remains in place at the playing fields, but no arrests have yet been made.

Detective Inspector Jonathan Newell said: “This is very serious incident that has left a young man with life threatening injuries and we urgently need information from the public.

“Anyone who was in the area of the park at the time may be able to assist. Did you see youths either going to or running away from the park? If you live near the park and have CCTV that might record people traveling there, let us know, we want to see that CCTV.

“Also if you live near the area and find anything in the street, or your garden, that might have been used or discarded in this assault, call us. Anyone calling police will be fully supported and you can always call Crimestoppers if you don’t want to give your name. But please, if you have information, make that call.”

To report information call police on 101, or contact via @MetCC on Twitter referencing CAD 5906/26AUG.

Alternatively you can report information anonymously through Crimestoppers on 0800 555 111 or online at crimestoppers-uk.org.