The main road between Oxenhope and Hebden Bridge has been closed following a car crash in heavy fog.
Two people had to be cut free from a Subaru Impreza after a collision with a Vauxhall on the A6033.
Emergency services, including fire crews from Haworth and Todmorden, were called out at 1.13pm, and closed both lanes after arriving.
The driver of the Subaru was complaining of neck pains, and firefighers cut the roof off the vehicle to get him out safely. He was then taken to Calderdale Hospital.
As of 2.30pm the road was still closed.