All traffic is being held on the M4 westbound at junction 33 in Cardiff following a vehicle fire. The incident has brought traffic to a standstill on that side of the motorway.
Queues stretch back to junction 32
Traffic is backed up to junction 32 at Coryton, with eyewitnesses reporting queues are currently at a standstill. The westbound carriageway remains blocked as emergency services deal with the scene.
Live updates continue
Further details are expected as the situation develops, and live updates are being provided as the incident unfolds.
