Bucks Fire and Rescue are currently dealing with a crash.
Emergency services are currently at the scene of a collision involving two cars in Aylesbury Road, Haddenham
Danny Greenay tweeted: a418 between Aylesbury and Haddenham been sat here 15mins. Hopefully they're OK? #staysafe
Delays are expected, with traffic being redirected through Cuddington
More updates as we get them.