POLICE were called to the A65 at Addingham at 8.10am to reports of a serious road traffic collision.
Paramedics and firefighters have also been called to the scene and there are reports the Yorkshire Air Ambulance has also landed.
A West Yorkshire Police spokesperson said: "Road closures are in place on the A65 at the junction with Main Street and motorists are advised to avoid the area.
"Enquiries are ongoing."
There are reports on social media of a lorry, which is on its side, and four cars being involved in the crash.
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