MOGADISHU, Somalia » The U.N. says the death toll has gone over 100 after a suicide car bombing that targeted a government compound in Somalia’s war-ravaged capital.

The U.N.’s office for the coordination of humanitarian affairs said in a report released Thursday that the blast is a stark reminder of the prevailing insecurity in Somalia amid a debilitating famine.

A truck loaded with drums of fuel exploded Tuesday at the gate of compound housing several government ministries on a busy Mogadishu street. It was the deadliest single bombing carried out by al-Shabab in Somalia since their insurgency began.

The group promised more attacks, saying they will be "back-to-back" and will "increase day by day." Most of the group’s fighters left the capital in August after an offensive by African Union forces.