Queueing traffic after five vehicle crash in Hertfordshire

There has been a five vehicle crash on the A1 in Hertfordshire.

Two lanes are closed and there is queueing traffic northbound from Junction 4 (Hertford/Welwyn Garden City) to Junction 6 A1000 Welwyn By Pass Road (Welwyn/Welwyn Garden City).

Travel time is reportedly around 30 minutes.

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• A1
• hertfordshire