Suspected militants kill police officer assigned to guard polio team as nationwide campaign begins

Suspected militants have opened fire on a vehicle carrying police officers assigned to protect polio workers in northwestern Pakistan, killing one of them and wounding four others. Two attackers were also killed when police returned fire. The shooting occurred on Monday in Hangu, a district in Khyber Pakhtunkhwa province bordering Afghanistan, shortly after Pakistan launched its second nationwide anti-polio campaign of the year, according to police official Mahmood Alam. No group immediately cla...