Three American NATO contractors were among at least 12 people killed in a suicide car bombing in Kabul on Saturday.
Children were among dozens of others injured, according to witnesses.
A convoy carrying civilians working with NATO was targeted in the Afghan capital which has seen a wave of attacks since news broke in July of the death of the Taliban leader Mullah Omar.
The force of the blast, close to a hospital, destroyed several vehicles, including a school van and a pick-up truck left twisted and blackened, with another vehicle in flames.
Paramedics carried away casualties on stretchers.
“Twelve dead bodies and 66 wounded people were taken to several Kabul hospitals,” health official Kabir Amiry said. “Some were in a bad condition.”
No group claimed responsibility for Saturday’s explosion. In a statement, the Taliban denied it was behind the bombing.
Minutes after it ripped through a residential street, British and US soldiers arrived at the scene in armored vehicles. Several armed security contractors also came to the blast site.