TOPSHOTS Malian children look inside a car on January 27, 2013 in Konna on January 27, 2013 in Konna. French-led troops were advancing on Mali's fabled desert city of Timbuktu on Sunday after capturing a string of other towns in their offensive against Islamist militant groups in the north of the country. Meanwhile, African leaders meeting in the Ethiopian capital were discussing scaling up the number of African troops to join the offensive, after the African Union's outgoing chief admitted the body had not done enough to help Mali. AFP PHOTO / FRED DUFOUR