At least eight people have been killed and 28 others wounded after a NATO convoy was targeted in a suicide bombing in the Afghan capital, Kabul.
The blast hit a convoy of armoured personnel carriers used by the NATO-led Resolute Support mission during morning rush hour.
Public health officials in the capital said eight civilians were killed and at least 25 wounded, with a number of civilian vehicles that were near the convoy destroyed or badly damaged.
A Resolute Support Spokesman, US Navy Captain Bill Salvin, said three US service members were wounded in the attack.
The armoured personnel carriers, which are designed to withstand large blasts, were able to return to a coalition base under their own power, he said.
The attack follows a threat by the Taliban to target foreign forces in the spring offensive that it launched last week.
The so-called Islamic State has said it was behind the attack.
Witnesses said traces of blood and clothing could be seen on the ground at the blast site.
The heavily armoured MRAP (Mine Resistant Ambush Protected) vehicles that coalition forces use to travel in Kabul appeared to have suffered only relatively minor external damage, witnesses said.