An overturned tanker closed a section of the M1 in West Yorkshire for several hours.
Police said the tanker crossed the central reservation and overturned just after 11:00 BST at junction 47, near Garforth.
The driver was freed from the vehicle and taken to hospital.
Highways England has reopened the M1 southbound but a lane remains closed and northbound traffic is being diverted.
The motorway was reopened shortly after 18:00, said Highways England.
A diversion had been put in place and there were significant delays with reports of up to eight miles of queuing traffic southbound.
Northbound traffic is still being diverted from the scene of the crash via the exit and entry slip roads at junction 47.