Ambulances take away the bodies of 10 girls killed in a blast in eastern Afghanistan on Monday.
The girls, aged between nine and 11 years old, were collecting firewood in Nangarhar Province, near the border with Pakistan.
One man says he lost two of his grandchildren in the blast.
More ambulances in Kabul, where a suicide bombing killed two Afghan civilians.
The blast took place on a street where several bases for foreign troops are located.
The Taliban claimed responsibility for the attack, saying it targeted a U.S. contracting company.
The Virginia-based company, Contrack International Inc., has built fuel storage systems in military bases in Afghanistan.
The Taliban and its allies have staged high-profile attacks in Kabul over the past few years against Western targets, including embassies.
But attacks on Western companies are rare.
Deadly blasts in Afghanistan (1:00)
Dec. 17 - Ten girls are killed in a blast in eastern Afghanistan, and a suicide bombing in Kabul targeting an American company kills two. Sarah Sheffer reports. ( Transcript )