At least six people, including four policemen, and 12 others injured on Monday morning when a bomb blast hit Pakistan's northwestern provincial capital of Peshawar.
According to Senior Superintendent of police Najib ur Rehman, the blast targeted a police squad, who was guarding outside a dispensary where polio workers were collecting their vaccination material in the Badaber area in the outskirts of Peshawar.
Police and rescue teams rushed to the site and shifted the bodies and injured to the Lady Reading Hospital in Peshawar.
Two of the killed people belonged to the local peace militia, who came to assist police personnel to provide security to the polio vaccination workers.
The bomb also destroyed one police vehicle besides damaging nearby fruit and vegetable shops.
Bomb disposal squad diffused another bomb that was planted nearby and might be used to target people during rescue operation.
No group or militant organization claimed responsibility for the attack yet.