Two police officers were martyred in an armed attack on a polio squad in a Khyber Pakhtunkhwa (KP) district. Armed men opened fire on the polio team in Tank district.
Constables Pir Rehman and Nisar were killed in the incident. They were both deputed on the security of the polio team.
Following the incident, a contingent of police and security forces arrived in the area, collected evidence, and began the investigation by gathering eyewitness testimony.
The current polio campaign will run until August 24.
Earlier this year in June, one polio worker and three others were killed as a result of an attack on the polio team in North Waziristan.
Pakistan has reported at least six cases of polio this year, As per the World Health Organisation (WHO), Pakistan and Afghanistan are the only two polio-endemic nations in the world.