A family of six who carried out three church bombings in Indonesia had returned from Syria, police say.
The Islamic State group has claimed the attacks, which killed at least 13 people on Sunday.
A mother and two daughters blew themselves up at a church, while the father and two sons targeted two others in Indonesia's second city, Surabaya.
National police chief Tito Karnavian said they belonged to an IS-inspired network, Jemaah Ansharut Daulah (JAD).
Police say the family were among hundreds of Indonesians who had returned from Syria, where IS has been fighting government forces. No details were given about the family's alleged involvement in that conflict.
The bombings are the deadliest in Indonesia in more than a decade, and also left more than 40 people injured.
http://www.bbc.com/news/world-asia-44101070