There has been a crash outside the Shell petrol station on the A41 between the Rock and the Arc. Police have closed off the road and ambulances are in attendance.
Nice one for the update, posted it on me fone as soon as I saw it - wiki, your onestopshop for live traffic information lol.
I saw it on the way home. One car had gone into the side of another right outside the Shell station. It must have just happened as there where no emergency services present.