Essex Police are appealing for information following a report of concern for welfare, on Saturday 16 May in One Tree Hill, Langdon Hill County Park.
At around 1.20pm a man who seemed distressed spoke to a dog walker who became concerned following the conversation.
He has been described as white, in his early 20s, with mid length mousy brown hair. He was wearing jeans and a black sweatshirt with a zip.
Following an extensive search by the Grays Local Policing Team they were unable to locate him. Essex Police would like to find him to make sure he is ok.
If there is anyone who recognises this description and believe it might be you or have concerns of a family member or friend, please call on 101 quoting incident 549 of Saturday 16 May.