A man was rushed to hospital with serious injuries after a crash between a van and a lorry.
The collision happened on the A1 northbound near Stretton at about 5.20am this morning (Wednesday).
Fire and ambulance crews were called and one man was taken to Peterborough City Hospital with serious but not life-threatening injuries.
Police did not know whether the man was driving the lorry or the van.
The northbound lanes were blocked while the vehicles were removed causing delays to traffic.
The road reopened at 8.50am.