Police are looking for a “large group” of motorcyclists dressed as Santa in north Wales after a crash left a man in hospital with serious injuries.
North Wales Police were called to the single-track road between Glyn Ceirog, Llangollen, Denbighshire, and Fron, Wrexham, at 14:15 GMT on Sunday after reports of a crash involving off-road motorbikes.
The police said one of the motorcyclists left the scene after the crash.
The force wants anyone with information which could help officers to contact them.