The blast occurred at around 8.30 a.m. when a joint Afghan and coalition convoy was passing through a busy area of the provincial capital city of Khost, some 150 km from Kabul, Xinhua reported.
“Three International Security Assistance Force (ISAF) service members and an ISAF-contracted interpreter died following a suicide improvised explosive device (IED) attack in eastern Afghanistan today,” the coalition forces said in a statement Monday.
The provincial government reported 10 casualties, including that of a provincial commander of police force.
“Mubarak Shah, a provincial commander of rapid-reaction police force, along with three Afghan National Police (ANP) officers and six civilians were killed in Monday morning’s suicide attack in Khost city,” it said.
A total of 37 people, including three policemen, were wounded in the attack, said the government, adding that the toll could rise as many injured were in critical condition.
No group immediately claimed responsibility for the suicide bombing.