Police in Derry are concerned for the whereabouts of Michael Box.
Michael was last seen on Friday, November 10 in the area of St Columb's Wells in the city.
Michael was wearing a knee length black coat. He is of slim build and is 5'7" in height.
"If you have any information, please contact 101 and quote serial number 390 10/11/23," a PSNI spokesperson said.
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