One appliance and crew from High Wycombe attended, along with an officer. Firefighters established a 100m cordon, and road closures are in place. Shops and a filling station have been closed, and residents living in nearby flats have been evacuated as a precaution. Other residents have been advised to close doors and windows while gas engineers work on the site. Buckinghamshire Highways and Thames Valley Police are also at the scene.
Road users are advised to find alternative routes while the road closure is in place.