The blast, which targetted a police vehicle, took place in the province's Chapa Dara district.

Among the deceased was Feroz, a police commander.

In a separate attack, at least seven policemen were injured after a car bomb exploded on Saturday morning in Kandahar province's Arghandab district.

The information was provided by Farid Mashal, the provincial police chief.

According to him, a school and several local buildings were damaged in the explosion.

In a second separate incident, one that took place in Jalalabad, three civilians sustained injuries in a roadside bomb blast, police reports said.

The explosion targetted a police vehicle, however, the three injured were civilians, Nangarhar police said.

No group has claimed responsibility for the attacks so far.