Michael Proudfoot was last seen leaving his home in Pierrepoint Road on Sunday August 13.
He is described as white, 5ft 8in tall, of medium slim build, with short white hair parted to the side and is missing a front tooth.
It is believed Michael was wearing a white polo top, blue jeans and brown trainer, possibly with a grey crew neck jumper with him, when he went missing.
Officers are increasingly concerned for Michael’s wellbeing and would urge anyone with information on his whereabouts to call police on 101 or Missing People on 116000.
To report or provide information on his whereabouts call 101 quoting 17MIS035735.
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