The incident happened at the Wingrave Crossroads at around 4pm forcing Thames Valley Police to shut the road ahead of rush hour.
Motorists are advised to avoid the area if possible.
A418 closed ahead of rush hour due to overturned lorry
A stretch of the A418 between Aylesbury and Milton Keynes has been closed this afternoon (Wednesday) because of an overturned lorry.
By The Newsroom
Wednesday, 7th November 2018, 3:43 pm
Updated Wednesday, 7th November 2018, 3:46 pm