Traffic is building on the A14 eastbound following a collision.
The accident is between junction 27 Cambridge Road (Fenstanton) and junction 28 Bucking Way Road (Cambridge Services / Boxworth).
According to traffic updates the crash is said to involve two lorries and a van and is leading to delays of up to 30 minutes.
Congestion is trailing back down the A14 to Rideaway.
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