The shaky mobile film that is spreading around the world shows how a demonstration train moves towards the airport in the capital Khartoum.
Closing the airport was one of the military's first steps when they took power on Monday.
When the demon rants reach a roadblock set up by the military, several shots are heard, after which the crowd flees between the houses.
The number of people killed in connection with the demonstrations in Sudan is divided.
The country's medical association tells AP that at least four people have been killed and over 80 injured by the military fire.
Other sources say at least seven people were killed and more than 140 were injured.
See the pictures from the capital in the clip above.