The A420 near Swindon is blocked after a lorry driver’s attempted at a U-turn.
Police were called to Acorn Bridge following the incident early this morning (Tuesday).
The major route is closed between Swindon and Shrivenham, and could remain shut during the rush hour.
A spokesperson for Wiltshire Police said: “The driver was trying to turn around and got stuck. We have recovery on the scene and will try to get it cleared before rush hour traffic.”