Homeowners have been asked to check their gardens and outbuildings after a 21-year-old man was reported missing in the Tain area.
David Mackay, from Alness, was last seen outside the Duthac Centre in Tain at 1.15am on Saturday.
Police are now appealing for anyone who has information on him to get in touch, and for locals to be on the lookout for Mr Mackay.
They also want to speak to anyone who was in the area around the time he was last seen.
David is 6'1" in height, with a slim build, red curly hair, no facial hair and blue eyes. He was wearing a black blazer, white shirt, dark jeans and black dress shoes.
Anyone with information is asked to contact Northern Constabulary on 01463 715 555.
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