A van driver has been airlifted to hospital after he crashed with a tipper truck.
The incident happened at the Wingrave crossroads on the A418 between Aylesbury and Wing at about 7.40am today.
Six fire crews helped release the van driver before he was airlifted to the John Radcliffe Hospital in Oxford with suspected leg injuries.
The tipper driver did not need hospital treatment.
The road is expected to remain closed until around 1pm.