A roadside bomb exploded Monday near a van carrying police assigned to protect workers in an anti-polio immunization campaign in restive northwestern Pakistan, killing at least six officers and wounding 10 others, officials said. The Pakistani Taliban claimed responsibility for the attack.
The bombing happened in the former Pakistani Taliban stronghold of Mamund in Khyber Pakhtunkhwa province bordering Afghanistan, police official Kashif Zulfiquar said.
