At least 25 people were killed and 46 others were injured in the bombing outside the church, said Sahibzada Muhammad Anis, Commissioner of Peshawar.
He said the bomber targeted worshippers when they were coming out of one of the oldest churches in the city's Kohati Gate district after Sunday mass.
The church is situated in a very congested locality which is always jam packed with the people mostly women as the area is the hub markets and shopping centres. The Christian community lives in the vicinity and visited the church for Sunday service in large number.