A roadside bombing hit one police vehicle Thursday morning in southern Afghan province of Helmand, killing three policemen, police said on Friday.
Assadullah Shirzad, the Helmand provincial police chief told Xinhua that one police vehicle was struck by roadside mines planted by Taliban in advance while patrolling in Nawad district.
"Blast claimed three policemen and injured two more," Shirzad said.
Qari Yusuf Ahmadi, the purported Taliban spokesman, immediately took responsibility for the attack.
In another incident, a suicide bombing on Friday left two civilians wounded elsewhere west of the country.
Two civilian contractors, according to a statement of the U.S.- led Coalition forces, wounded in suicide attack Friday morning in western Afghanistan.
"The incident took place about 9:20 a.m. local time (0450 GMT) when the contractors' convoy was struck by a suicide vehiclebomber, " the statement said.
It added that Coalition forces have secured the scene, and the incident is under investigation.
Spiraling conflicts and Taliban-linked insurgency have claimed more than 5,000 people with some 2,000 civilians, so far this year, despite over 70,000-strong international troops stationed in strife-torn Afghanistan, reported Xinhua.