Scores of Libyan army vehicles have crossed the desert frontier into Niger. The convoy included as many as 250 vehicles and was given an escort by the army of Niger. Sources told Al Jazeera the convoy included officers from Libya’s southern army battalions and pro-Gaddafi Tuareg fighters. While some have speculated Libyan leader Col. Muammar Gaddafi was in the convoy, his whereabouts remain unknown. Libyan rebel leaders say they believe the convoy may also have been carrying large amounts of gold and money from the Central Bank of Libya. On Sunday, the head of Gaddafi’s security brigade, Mansour Dhao, fled from Libya to Niger.