Gunmen killed one police officer guarding a polio vaccination team in northwest Pakistan, Associated Press reported.
The attack took place in the district of Tank in Khyber Pakhtunkhwa province, on the second day of a five-day anti-polio drive to vaccinate 6.5 million children in the province.
Police officer Sajjad Ahmed told The Associated Press news agency two gunmen riding a motorcycle opened fire on the police team escorting polio vaccinators in the Chaddarah area.
One constable was killed on the spot and a Frontier Constabulary officer was critically wounded, while members of the vaccination team were unhurt.
MA/PR