Car accident

You are driving one afternoon through the country, it is rather foggy and the visibility is far from ideal. Around a corner you see a car that has skid off the road and crashed into a tree. You are alone in the car and it looks like there is nobody else nearby who could be of assistance. What would you do?
Help
Not stop at all, I am travelling alone. There is always the risk that it might be some robbers who have set up the accident so that they can mug innocent passersby.
Pull over to the side of the road, engage the hand brakes, to prevent the car from moving, turn on the hazard lights and switch off the engine. Take your mobile phone, first-aid kit, ‘warning triangle‘, put on the reflective vest and head towards the crashed car.
Stop the car in the middle of the road, engage the hand brakes, to prevent the car from moving, turn on the hazard lights and switch off the engine. Wait for another vehicle to pass by with someone who can help. It is not safe to go alone to the place of accident. In the mean time call the ambulance.