Police Scotland is appealing for witnesses after a man was seriously injured in a road traffic collision involving a quad bike on the island of Hoy in Orkney.
The collision was reported to police shortly after 1am on Sunday, August 18 after the 63-year-old rider of the quad bike was found injured on the B9047, just past the junction for Brims heading away from Longhope.
He was initially taken to the Balfour Hospital in Kirkwall and subsequently transferred to Aberdeen Royal Infirmary, where he remains to receive treatment to serious injuries.
The quad bike is described as being a black Suzuki Quadking 750cc. No other vehicles were involved.
Road Policing Sergeant David Miller said: "We are working to establish the full circumstances of this collision and anyone who may be able to help is asked to come forward.
"I would appeal to anyone who may have seen the quad bike being ridden from the direction of Longhope, either late on Saturday, August 17 or in the early hours of Sunday, to make contact.
"Anyone who could help our enquiries can call 101, quoting reference NK1045/19."