BANDUNG, Indonesia — At least 11 people were killed on Sunday morning after suicide bombers detonated explosions at three churches in Surabaya, Indonesia’s second-largest city, as worshipers gathered between services, the police said.
Indonesia’s police chief, Tito Karnavian, said the bombings had been the work of one family, who set off three different kinds of bombs.
The Islamic State claimed responsibility for the attack, according to the Islamist militant group’s news agency Amaq, but did not provide any evidence.
More than 41 other people were wounded by the attackers, at least one of whom was disguised as a churchgoer, said Frans Barung Mangera, a police spokesman. He said the number of casualties could increase as the police were still investigating the blasts.