Hiker Stephen Gibson missing on North York Moors
A search has been launched for a 73-year-old hiker who went missing overnight in heavy fog on the North York Moors.
Stephen Gibson was last seen at 16:00 GMT on Wednesday by a group he had been with in Rosedale, near Chimney Bank
Mr Gibson, a fit, regular walker who knew the area well, may have got into difficulty or been injured, North Yorkshire Police said.
The force said it was "growing concerned" for Mr Gibson's safety.
Search and rescue volunteers are scouring the area with support from the Royal Air Force.
Mr Gibson, who is from Terrington, near Malton, is white, about 5ft 10in tall with blue eyes, grey, balding hair and wears glasses.
He was wearing a blue and green waterproof jacket over a quilted waistcoat, breeches, boots and a tweed cap.
The pensioner was last seen walking along a path between Lastingham and the Chimney Bank before getting separated from the group.
Officers said nine specially trained rescue dogs from other parts of the country were being used in search as well as thermal imaging cameras.