At least eight people were killed and sixteen injured in a suicide attack on the Bethel Memorial Methodist Church in Quetta—the provincial capital and largest city of Balochistan Province, Pakistan, on Sunday afternoon, according to DawnNews of the country.

Four suicide attackers had struck the Church while Sunday service was ongoing.

There were 400 worshipers inside the church when it came under attack, Balochistan’s Inspector General of Police Moazzam Ansari, and Home Minister Sarfaraz Bugti confirmed.

After receiving bullet injuries in the exchange of fire with police, one of the attackers was reported to have detonated his suicide vest at the church’s main door. Another was shot dead near the church's entrance by security forces, the police chief said.

The two other attackers managed to escape.

“We are looking for the other terrorists,” Bugti said, in particular.

According to DawnNews, some of the injured are in very critical condition.