The incident happened on the Quetta-Chaman national hig­­hway. 

A policeman was among those who died in the mishap.

A suicide bomber travelling in a rickshaw targeted the truck carrying police contingent for the security of polio workers who were administering vaccines during an ongoing campaign in Kuchlak and other areas of Quetta district, reports Dawn News.

The banned Tehreek-i-Taliban Pakistan (TTP) claimed responsibility for the incident.

The attack comes a couple of days after the militant group called off its ceasefire with the government and asked its combatants to carry out attacks across the country, the Pakistani newspaper reported.