JAKARTA (Reuters) - Islamist militant group Islamic State is "definitely" behind the attack on Indonesia's capital, the Jakarta police chief said on Thursday.
"ISIS is behind this attack definitely," Tito Karnavian told reporters.
Karnavian said Indonesian Islamic State fighter Bahrun Naim, who is believed to be in Syria, was "planning this for awhile. He is behind this attack."
Reporting by Kanupriya Kapoor and Gayatri Suroyo; Editing by Clarence Fernandez