A number of civilians have died in a collision between a bus and an Afghan army truck in the south of the country, Afghan authorities said.
The interior ministry said three civilians died and seven were wounded in the collision on the road from Kandahar to the Pakistan border.
A spokesman said earlier reports that the truck was a US vehicle and 10 people were killed were wrong.
A US army spokesman had said he had not heard of any US involvement.
Local Afghan police had initially reported that a US Humvee was involved and that US troops had cordoned off the area.
It was not clear what caused the crash.
A spokesman for a firm that organises security guards for the road concerned told the BBC the crash took place at 0830 local time (0400 GMT).
An investigation is under way.