The A1 has been closed near Doncaster this morning following a serious accident.
The southbound carriageway has been closed at Blyth for nearly three hours following a crash between a car and a lorry.
The road is closed between the the A620 (Ranby) and the A638 (Markham Moor).
A signed diversion is in operation. Southbound traffic should exit at the junction with the A620 and follow the “hollow circle” symbol via the A620 eastbound and A638 westbound to rejoin at Markham Moor.