A suicide bomber struck a NATO convoy near the southern Afghan city of Kandahar on Wednesday, causing casualties, said the US military.
Lt Damien E Horvath, a military spokesman, could not say how many casualties there were or provide their nationalities.
The NATO mission, known as Resolute Support, “can confirm that a NATO convoy was attacked in Kandahar. The attack did cause casualties,” he said.
Kandahar police spokesman Zia Durrani also confirmed the attack and the area on the edge Kandahar was quickly cordoned off.
No one immediately claimed responsibility for the bombing.
Eyewitness Ghulam Ali, who runs a mechanics shop near the attack site, said the intensity of the blast knocked him out.
When he came to he saw one military vehicle ablaze on the road.
He stepped out of his shop but a sudden burst of gunfire drove him back inside.
He heard helicopters arriving and saw soldiers being taken away from the scene but could not determine the extent of their injuries.
Shah Agha Popal, who runs a vehicle parts shop also nearby, said he also saw soldiers being taken away by two helicopters.
“But I couldn't tell if they were wounded or if they were dead,” he said.
The combined US and NATO troop contingent currently in Afghanistan is about 13,500.
The Trump administration is deciding whether to send about 4,000 or more US soldiers to Afghanistan in an attempt to stem Taliban gains.
