The tunnel was used to supply the Bosnian armed forces with wartime supplies, including food, fuel, newspapers, and weapons. Wagons were used to cart supplies through the tunnel and could be loaded with 400 kilograms of goods at a time. The first items to go through the tunnel were Bosnian IEDs. Food, cigarettes, alcohol, and petrol also passed through the tunnel allowing Butmir, Kolonija, and Hrasnica to become blackmarket centers for the illegal sale of these items. The tunnel was also used to transport oil, and for telecommunication.