An Indonesian family brought its 7-year-old daughter to a suicide bomb attack it launched Monday on the police headquarters in the country's second-largest city, authorities said, a day after members of another family conducted coordinated suicide bombings on three city churches that killed 12 people.
Kuswati, with her two daughters, attacked the Christian Church of Diponegoro, he said.
Tito Karnavian, Indonesia's top-ranking police officer, told reporters Monday that police were working on the assumption that the attacks followed a directive from ISIS Central Command to avenge the imprisonment of the former leaders of Jamaah Ansharut Daulah (JAD), an Indonesian jihadi group that supports ISIS. The third was detonated outside the Surabaya Central Pentecost Church.
Later in the day, police said another family attempted to carry out an attack the Surabaya suburb of Sidoarjo.
On Sunday evening, just hours after the church bombings, a further three people in another family were killed and two wounded when another bomb exploded at an apartment complex about 30 kilometers from Surabaya. Officers reportedly found the father of the family in the house holding a detonator and shot him.
The family's 12-year-old son took his two younger sisters to the Bhayangkara Police Hospital, he added. At least seven others were killed in the blasts.
The bombings, which have since been claimed by the Islamic State, are the deadliest terror attacks to place in Indonesia since 2005, leaving dozens of people dead and injured. He also said the attacks could also be in retaliation to the arrest of two suspected terrorists and the deaths of four others May 4 in Bogor. On Feb. 11 in Central Java's city of Yogyakarta, a Muslim extremist attacked a Catholic church.
Indonesia has been on high alert for attacks by homegrown militants, including some claimed by ISIS.