Multiple road closures and crashes have caused congestion across the UK. The A19, A41, and A629 are affected, with detours in Aghagallon and Oxfordshire. Vehicle fires and collisions have led to lengthy traffic jams and alternative routes. The A19 has seen congestion due to an early morning crash, while the A41 in Hertfordshire was shut down for 50 minutes after a vehicle fire. Traffic on the A19 southbound at Crathorne is resuming normal flow. Drivers on the A19 in Sunderland are experiencing traffic slowdowns after a crash and early morning blockage.