The A428 Cambridge Road is closed both ways (Image: Newsquest)
A stretch of major Huntingdonshire road has closed after a serious crash
The A428 is closed both ways between the Caxton Gibbet roundabout near St Neots and the B1040 near Eltisley.
Emergency services are dealing with a three-vehicle crash involving a lorry, van and a campervan, according to the Highways Agency.
Posting on Facebook, a spokesperson for Cambridgeshire Police said: "Police are currently dealing with a serious accident.
"Road closures in place. Please avoid the area if you are able."
It's unclear at this stage whether any injuries have been reported.
Cambridgeshire Police have been contacted for further information about the crash.
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