Teenager fatally stabbed in Islington named as Stefan Appleton

Stefan Appleton was stabbed after two youths pulled up on a moped in Nightingale Park

A teenager stabbed to death in north London has been named by police as Stefan Appleton.

The 18-year-old was found in Caldy Walk, Islington, shortly after 18:00 BST on Wednesday and died a short time later in hospital.

Officers said they were keeping "an open mind" over the motive for the stabbing.

No arrests have been made but a police spokesman confirmed the force was looking for a suspect or suspects.

Mr Appleton was in Nightingale Park with friends when two youths pulled up on a moped, police said.

An eyewitness took this photo of London's Air Ambulance landing in Marquess Estate, near to where the stabbed teenager was found

The pillion passenger on the moped attacked the victim, stabbing him a number of times with a large bladed item before making off on the vehicle into Nightingale Road, a spokesman said.

BBC London reporter Emilia Papadopoulos, who was at the scene, said the Mr Appleton was stabbed in Nightingale Park, but managed to stumble across the road to Caldy Walk where he collapsed.

She added: "This attack happened in broad daylight and right in the middle of the estate, and witnesses told me there were children playing here at the time."

The moped involved is described by police as having a clear front screen and displayed an L plate to the rear, while the pillion passenger was wearing dark clothing and a dark helmet.

Det Ch Insp Chris Jones said: "I am very keen to hear from everyone who was in the area of Caldy Walk.

"We are also keen to hear from anyone who saw or heard anything suspicious or who has information that could assist the investigation."