Update - M1 fully reopen after serious accident
The accident happened on the southbound carriageway close to junction 44 near Stourton at around 9.15am.
A West Yorkshire Police spokeswoman said: “It would appear that a white Iveco flat-bed van has lost its load and a lorry has been involved in a collision as a result.
“The lorry driver was taken to Leeds General Infirmary when his injuries are not life-threatening. The road remains partly closed to allow for recovery of the vehicles and for the road to be cleared.”
All lanes have now reopened.