Search stepped up for missing Shaun Ritchie in Aberdeenshire
Specialist search teams have been brought in to help police look for a man missing since the weekend.
Shaun Ritchie, 20, was last seen with friends at a remote woodland area near Strichen sometime on Friday night into Saturday morning.
RAF and police mountain rescue teams, a police helicopter, divers, specialist searchers and dog handlers have joined the search.
Mr Ritchie was wearing grey jeans, a white t-shirt and grey hooded top.
Insp Alan Brown, of Police Scotland, said: "We have carried out extensive searches today to find Shaun and I would urge anyone with information or who may have seen him to contact us."
"Shaun was last seen in the early hours of Saturday morning and we are now becoming increasingly concerned for his wellbeing."
Anyone with information about Mr Ritchie is asked to contact police.