A five-day anti-polio sub-national immunization campaign began in nine districts of Khyber Pakhtunkhwa from today.

According to the Emergency Operation Center, the districts include Peshawar, Nowshera, Bajaur, Mohmand, Swat, Khyber, DI Khan, Tank and South Waziristan.

More than two million children below five years age will be vaccinated during the campaign.