Tuareg rebels say they want the United States and France to intervene . Several buildings at a UNESCO World Heritage Site in Timbuktu are reported destroyed . Timbuktu 's treasures at risk . Islamist militants say they will continue the fighting .
Tuareg rebels say they want the United States and France to intervene . Several buildings at a UNESCO World Heritage Site in Timbuktu are reported destroyed . Islamist militants say they will continue the fighting .