Recently, a man was killed when he was blown to pieces on the western frontline of Misurata, one of Libya's main rebel-held cities.
That's when opposition fighters made the discovery that hundreds of anti-tank mines are dispersed around the area.
In just 10 days, nearly 600 mines were disabled in only one third of this area. But the demining team has insufficient experience and equipment to handle the mines.
Now, as the rebels try to get closer to Tripoli, they expect the threat of mines to increase.
Al Jazeera's Hoda Abdel-Hamid reports from Misurata.