A desperate search is underway to trace a man missing for four days.
Richard Paterson, 59, disappeared from Kilmarnock town centre, where he was last seen at 4pm on Saturday, April 22.
He has not been seen or heard from since.
Officers have urged anybody with any information on Richard's whereabouts to come forward.
He is described as 5ft10in tall, with grey/white receding hair.
At the time of his disappearance, he was wearing a green jacket and a black beanie hat.
Those with any information are urged to contact Police Scotland on 101 quoting reference number 1011 of April 24.
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