A significant disruption has occurred on the A303 following a serious incident in which a lorry transporting hay caught fire. The blaze led to the road being closed, causing considerable delays for motorists. Emergency services attended the scene promptly and have been working to extinguish the fire and clear the wreckage. Authorities have indicated that the closure is likely to remain in place for some time as they ensure the area is safe for traffic to resume. Drivers are advised to seek alternative routes and remain patient while the incident is resolved.