The A1 is currently closed in both directions near Scotch Corner after a Land Rover towing a cattle trailer overturned on the northbound carriageway at around 1pm.
The driver of the Land Rover was uninjured in the incident.
Vehicle recovery services are at the scene of the incident to remove the Land Rover and the trailer from the carriageway.
A vet is also at the scene to check if any cattle which were travelling in the trailer have been injured.
South Yorkshire Police want witnesses to come forward after a man fell from a footbridge onto the A1 motorway in Doncaster yesterday, and died.
At around 3.15pm the 51-year-old man was seen in his wheelchair on the Broomhouse Lane road bridge over the motorway, between junctions 36 and 35 southbound.
He was then seen to climb over the railings and fall onto the hard shoulder. Nobody else is thought to have been involved.
More than 500 people have turned out to view plans for a major upgrade of the A1 through North Yorkshire. The Highways Agency plans to convert the dual carriageway between Leeming and Barton to a three lane motorway. James Webster reports.
A Leeds MP has welcomed a u-turn by the Government, which will see part of the A1 in North Yorkshire upgraded, but criticised the time taken to make the decision.