Kabul  - Six Afghan police officers were killed Wednesday and five were wounded in a traffic accident in western Afghanistan, police said.

A police ranger vehicle collided head-on with a trailer truck as both were travelling at a high rate of speed on the highway between the Shindand district of the western province of Herat and Herat city, its provincial capital, said Abdul Mutalib Rad, a police spokesman in the region.

Rad said the injured police, some in critical condition, were evacuated to a provincial hospital for treatment.

He blamed the truck driver for not observing traffic rules. (dpa)