A suicide bomber targeted a convoy of foreign troops near the southern Afghan city of Kandahar on August 2, causing casualties, NATO's mission in Afghanistan says.
The NATO mission, known as Resolute Support, could not say how many casualties there were and would not immediately provide their nationalities.
Provincial police spokesman Zia Durrani said the convoy was targeted in the Daman area.
An unidentified local security official said the attack took place near Kandahar Airfield, about 23 kilometers south of Kandahar city, where international troops that support Afghan security forces are based.
The Taliban claimed responsibility for the bombing, saying it killed 15 NATO soldiers.
The attack came a day after at least 33 people were killed by a suicide bomber and gunman who attacked a Shi’ite Muslim mosque in the western city of Herat on August 1.
Islamic State extremists claimed responsibility for the Herat mosque attack.
There are about 13,500 U.S. and NATO troops currently in Afghanistan.
The U.S. administration is deciding whether to send additional U.S. troops to Afghanistan to fight Taliban militants.