The entrance to Kennington Park in Aveley (credit: Google Maps)
A man reported to police that a boy had exposed himself in Kennington Park at around 3.25pm on Tuesday, 30 June.
The suspect is described as being slim, white, and around 17-years-old.
He had short black hair and was riding a blue scooter with grey and silver parts on it.
Anyone with information about this incident is asked to get in touch with Grays Local Policing Team by calling 101, quoting the reference number 42/96251/20.
Alternatively, witnesses can call Crimestoppers anonymously on 0800 555 111.
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Tags: Thurrock, Aveley