CONCERT traffic for Ed Sheeran's show in Cardiff this evening is causing congestion problems on the M4 Westbound as far back as the Severn Bridge.
Slow-moving traffic is being reported between the M4 Severn Bridge toll booths and J26 (Malpas).
Travel time is 60 minutes.
Traffic is being advised to use the M48 Severn Bridge to relieve the pressure on the M4.
A commuter said it had taken more than two hours to travel from Bristol to Newport this afternoon.
Tonight's concert is the first of four shows Ed Sheeran will play at Cardiff's Principality Stadium this week.
Gates open at 5pm for tonight's show.
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