We are in the early stages of the investigation and are working to establish the full circumstances of what has happened.
Following a post mortem examination we do not believe this man’s death was accidental.
We would urge anyone who may have seen or heard anything to contact us.
More top news
Largely dry and bright. Cold overnight
The former England captain said he is "shocked and deeply saddened" by the child abuse scandal surrounding the game.
Transport Secretary Chris Grayling reportedly wants the publicly-owned firm to share responsibility for running tracks with private firms.