Traffic on the A14 has been slowed to a crawl after a two-lorry crash.
The incident is reported to have happened at about 8.30am today (Monday April 16).
It is not known yet if anyone has been injured, but an ambulance is heading there.
Highways England said it happened on the eastbound carriageway after junction 24 with the A1198, at Godmanchester.
The agency said the crash was causing congestion back to the A1(M) at Alconbury, and travel time was estimated at about 40 minutes.
It said that two heavy goods vehicles were involved in the incident. A spokesman said: "It is confirmed that one of the two lanes is closed."
A police spokesoman said: "One lane was closed to deal with the incident. One driver received slight injuries and was taken to Hinchingbrooke Hospital. Highways are dealing with the recovery."
The Bedfordshire Cambridgeshire and Hertfordshire road policing unit tweeted a photo of the crash, saying the driver was lucky to escape.
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The westbound carriageway of the A14 was also running slowly at Brampton Hut, due to morning traffic.