If you break down or are involved in a road traffic incident in a tunnel
If your vehicle is on fire and you can drive it out of the tunnel, do so. If not
If the vehicle in front is on fire, switch on your hazard warning lights, then follow the above procedure, giving first aid to the injured if possible.
Some tunnels have signs with specific advice about what to do if you break down or are involved in an incident inside them. Make sure you follow these instructions and inform the tunnel controller of your location as soon as you can.