A double suicide bombing killed more than 60 people at a church service in northwest Pakistan on Sunday, officials said, believed to be the deadliest attack on Christians in the troubled country.

Pakistan's small and largely impoverished Christian community suffers discrimination in overwhelmingly Muslim-majority but bombings against them are rare.

The two bombers struck at the end of a service at All Saints Church in Peshawar, the main town of northwestern Khyber Pakhtunkhwa province, which has borne the brunt of a bloody Islamist insurgency in recent years.