A man in his 50s is in hospital with serious injuries following a smash involving a van and a lorry on the A14 in Northamptonshire on Friday morning.
An Air Ambulance ferried the injured man to nearby Kettering General Hospital following the crash at around 7.40am.
The eastbound carriageway remains closed between Junction 13 for Thrapston and Junction 15 more than seven hours after the crash, although it is expected to reopen shortly.
Highways England and Northamptonshire Police advised motorists to avoid the area with massive tailbacks on the A14 back towards Kettering and on the A45 approaching the Thrapston interchange.
The road stayed closed while Northamptonshire Police Serious Collision Unit investigated.
An appeal for witnesses or drivers in the area with dashcam footage has been issued. Anyone with information can call 101 using incident ref 81 or 23/10.
Highways England have issued advice to follow diversion routes via the A605 to the A1 southbound and rejoin the A14 eastbound at J21 Brampton Hut interchange.
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