A broken down lorry caused severe tailbacks on Western Boulevard in Nottingham.
The lorry broke down at the junction with Beechdale Road.
The city council's Travelwise account said all southbound lanes were affected, and severe congestion was building along Western Boulevard.
Drivers are being urged to use an alternative route.
Nottingham City Transport has said its Pink 28 and Grey 53 routes are being delayed by the breakdown.
The broken down lorry was removed from the carriageway by 9.51am.
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'Long delays'
Inrix has added: “Long delays, two lanes closed and queueing traffic due to broken down lorry on A6514 Western Boulevard Southbound at Beechdale Road. Congestion to A6514/ Boston Mews/ Harmston Rise.
“Lanes one and two (of three) were closed by the police at 9am to assist with recovery. Traffic is still able to pass.”
Broken down in the middle of the carriageway
Traffic monitoring site Inrix has said: “The white lorry has broken down in the middle of the carriageway causing cars to divert around it.”
