A suicide bomber has attacked a military convoy in the Afghan capital, Kabul, killing at least three civilians and injuring five US soldiers, officials say.
The attack is reported to have taken place in the city’s Qarabagh district.
The bombing is the latest violence to have hit Afghanistan this month – on Tuesday more than 30 people were killed in a mosque blast in Herat.
On Monday a suicide bomber killed two people near the Iraqi embassy in Kabul.
According to the United Nations, Afghanistan saw at least 1,662 civilian deaths in the first half of 2017, with about 20% of those in the capital.
At the end of July, a suicide car bomb killed at least 30 people in a mainly Shia district of Kabul. The Taliban said they carried out that attack.
On 31 May, a huge bombing in the center of the city killed more than 150 people, the deadliest militant attack in the country since US-led forces ousted the Taliban from power in 2001.
The violence underlines the precarious security situation in Afghanistan as US President Donald Trump weighs up whether to increase the number of US troops aiding the military and police in the country.
Correspondents say the suicide bombings in Kabul in recent weeks have also created a crisis of public confidence in the government, its policies and in particular the reputation of President Ashraf Ghani.