Keith Hoisington, 51 was last seen around 11am today, Sunday, 21 April, leaving an address in Hareshaw Road, in the Lanarkshire town.
He is described as medium to heavy build, 5’11 in height, black and grey short hair, clean shaven.
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He was last seen wearing blue demin jeans, black jacket, glasses and carrying a dark coloured rucksack.
Inspector Graham Reid, said: “Along with Keith’s family, we have growing concerns for his welfare and are appealing for anyone with any information on his whereabouts to come forward as soon as possible.
“I am also appealing directly to Keith if you see this, please make contact with police to let us know you are safe and well.
“Please contact police on 101, quoting incident 1585 of 21 April, 2024.”