There are long delays and traffic is at a standstill on the A4232 in Cardiff after an earlier crash and a fuel spillage.
Traffic has been building since the initial incident which happened just before 4pm on Monday.
A lorry is also awaiting recovery near Drop Road and there is a broken down vehicle near Leckwith.
Travel time to Butetown Tunnel and the A4050 Port Road is around 40 minutes.
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