Police say gunmen on a motorcycle have killed the deputy chief of a jail and his brother as they received guests for the Eid al-Adha holiday in northwest Pakistan.

Senior police officer Shafiullah Khan says Thursday's attack took place in Charsadda, about 50 kilometers (30 miles) northeast of Peshawar, capital of Khyber Pakhtunkhwa province. No one claimed responsibility but suspicion fell on Pakistani Taliban who often target police and security forces.

The Pakistani Taliban has claimed in recent years that some of their detained fighters are tortured in jail.

Eid will officially be celebrated in Pakistan on Friday but people in parts of the country's northwest follow Saudi Arabia, where Eid was celebrated on Thursday.