Indonesia's police chief says a suicide attack outside a police building in Surabaya, which wounded officers and civilians, was carried out by a family of five that included an eight-year-old child.
The family, riding on two motorbikes, blew themselves up at a checkpoint outside the police station on Monday, Police Chief Tito Karnavian told a news conference. The young child survived and is now recovering, he said.
The attack came a day after a family of six, including two girls aged 12 and 9, killed 13 people as well as themselves in separate suicide attacks on three churches in Surabaya.
"Four attackers on two motorycles died," East Java police spokesman Frans Barung Mangera said on Monday in reference to the police station attack.
East Java police chief Machfud Arifin confirmed the attackers were members of one family.
"The youngest child was thrown from the motorcycle but survived," he said.
Security footage circulating online shows two policemen stopping a motorcycle carrying at least two people at the gate to the station before the bomb was detonated.
Police also killed a suspected Islamist militant late on Sunday after an explosion in his apartment in the town of Sidoarjo killed his wife and one of his children, Mangera said.
Police shot the suspect dead after they rushed to the apartment and found him holding a bomb detonator.
After Monday's attack, Indonesia's President Joko Widodo called on parliament to pass revisions to anti-terrorism laws.
"I ask the House of Representatives and ministries dealing with revisions to the law on terrorism, which we submitted in February 2016, to complete [the discussion] as soon as possible," Joko said.
"This law is an important legal umbrella for the police to take strong action in preventing acts of terrorism."
He warned that he would issue an emergency degree if parliament failed to pass the revised anti-terrorism bill by June.
The country's top security minister Wiranto, who goes by one name, said the bill, if passed, would allow security authorities to take "pre-emptive" action to stop attacks. He did not elaborate.
Police said on Sunday that an Islamic State-linked group, Jemaat Ansharud Daulah (JAD), was behind the attacks on churches in Surabaya.
National police chief Tito Karnavian said that the attackers had acted on instructions from "ISIS Central" in Syria.
The Islamic State terrorist group, also known as ISIS, also claimed responsibility for Sunday's attacks via its news agency Amaq.