Police say both attackers male, identities to be released soon
Indonesia's National Police spokesman Setyo Wasisto said "The police officers were on duty to guard a group of people who were holding a parade. The parade hadn't passed yet when the blast happened." He said the attackers' identities would be released soon.
Analysts say ISIS has stepped up its propaganda efforts in South East Asia. Several Indonesians have also appeared in ISIS videos. 30 Indonesian terror groups have pledged allegiance to ISIS. In Syria, Indonesian and Malaysian ISIS cadre have formed a common group called Majmu'ah al-Arkhabiliy.