At least eight worshippers were killed and 20 others injured on Sunday in a suicide bombing at a church in Quetta, the capital of Pakistan's restive southwestern Balochisan province.
Around four militants attacked the church located on Zarghon Road of the provincial capital when the Sunday service was going on, according to police.
Balochistan Home Minister Mir Sarfaraz Bugti said that at least two attackers were involved.
"One attacker was killed at the gate by police while the other wearing suicide vest entered the church and detonated his explosives," he said.
DIG police Abadul Razzaq Cheema said that two more attackers were involved but they ran away after one of the attackers was gunned down by police. He said the fleeing militants were chased by police and killed.
No group took responsibility of the attack but the Taliban militants targeted minorities including Christians in the past.
Following the attack, an emergency was imposed in all hospitals across Quetta.
Police teams and rescue teams have reached the site of the explosion, and the area has been cordoned off.
Pakistan Interior Minister Ahsan Iqbal condemned the attack, which came a day after Pakistan observed the third anniversary of the Peshawar school attack of 2014 which killed at least 150 people, mostly students.