If a fire involves the cargo compartment of a vehicle loaded with Division 1.1 mass-exploding explosives, what action MUST the driver take?

1. Do NOT attempt to fight the cargo fire; immediately raise the alarm, evacuate the area to a safe distance (at least 300-500m), and warn others to stay clear
2. Grab a 2 kg dry powder extinguisher and climb inside the cargo body to spray the boxes
3. Throw buckets of sand over the exploding packages
4. Drive the burning vehicle into a crowded city center fire station