Detectives investigating the tragic death of a 15-year-old in New Malden, south west London, on Monday are urging any witnesses to come forward.
Alfie Lawton, 15, was found unresponsive near the railway lines in Green Lane Recreation Ground in Kingston upon Thames at around 7pm on Monday, February 8.
Despite efforts of members of the public who discovered him and paramedics, Alfie was pronounced dead a short time later.
His death is being treated as unexplained, but not suspicious. A post-mortem examination will be held, and his next of kin have been informed.
Police are urging anyone who was in or around Green Lane Recreation Ground on the evening of Monday, 8 February, or who may spoken with Alfie in the days before his death, to get in touch.
Anyone with information that could help with police enquiries is asked to call 101 or tweet @MetCC quoting ref CAD 5562/08FEB21
Alternatively, contact Crimestoppers anonymously on 0800 555 111.