Live updates as crash involving lorry shuts part of M4 Prince of Wales Bridge

A crash involving a lorry has shut part of the M4 Prince of Wales Bridge.

Lanes one and two (of three) have been closed on the westbound carriageway and are in place just up to where the old toll booths were.

Traffic is building and delays are affecting motorists between J22 and J23. Traffic monitors report that a lorry is involved in the crash.

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Live road updates here: