A murder investigation has begun after a man stabbed in Pinner died of his injuries.
Daniel Bytyci, 18, man was found stabbed at Montesole Playing Fields, in Harrow, just after 6pm on August 26.
Members of the London Ambulance Service attended and he was taken t hospital.
However, Mr Bytici died on Thurdsay September 10.
His family have been informed. A post-mortem is due to take place.
Two 15-year-old boys were charged with attempted murder at Willesden Youth Court on August 31 in connection with the incident. They will appear at the Old Bailey on Monday, 14 September.
Another two men aged 22 and 24, who were also arrested on suspicion of attempted murder, have been bailed until a date later in September.
Detectives from the Specialist Crime Command are investigating led by Detective Inspector Claire Hine. DI Hine said:
“I would appeal to anyone who was in Montesole Playing Fields that evening and saw this incident, or the events leading up to this incident, to contact police.
“While enquiries remain ongoing to establish the motive to Daniel’s murder, there is nothing at this time to suggest it is gang related.”
Anyone with information that could assist police is asked to call 101 or tweet @MetCC and quote CAD5906/26Aug. Alternatively, contact the independent charity Crimestoppers anonymously on 0800 555 111.