68-year-old Henry aka Davey Fullaton was travelling from Scotland to Hull ferry port when the coach he was travelling on stopped for a break at Wetherby Services at around 4.30pm on Tuesday 9 July 2019.
Mr Fullaton left all his belongings on the coach including phone, passport, bag and medication, but did not return to continue his journey.
He was reported missing just before 6pm yesterday and officers are now growing very concerned for his safety.
Searches of the area have been carried out and are continuing with assistance from the National Police Air Service’s helicopter. A possible sighting was made at junction 47 (A1 with the A59 to York and Harrogate) and searches are also focused on this area.
He is described as white, around 5ft 7in, of medium build, brown hair, unshaven with stubble and wearing glasses and a grey top.
Police are appealing to anyone who believes they have seen Davey either in the services, along any of the roads leading from it, or if they have offered him a lift.
Please call 999 with any sightings.