The accident happened between Aylesbury and Flitwick at around 11.15pm.
A 14-year-old boy was also injured during the assault.
The cause remains unclear.
Four people have died in a mid-air collision between a light aircraft and a helicopter near Aylesbury, Buckinghamshire, police
The enterprising spirit of two local shopkeepers is being applauded after they took on supermarket giant Sainsbury's by opening
Six members of a child sex ring in Aylesbury have been found guilty of their part in the horrifying abuse of two schoolgirls
A man has died after being shot with a crossbow at his home. Darrell Farnham, 44, was found at the house in Aylesbury, Buckinghamshire
WARNING: Do not scroll down if easily offended - graphic photos A dog walker found a human ear while walking is dog in a