In 2003 , Indonesian police confirmed the existence of " Mantiqe-IV " the JI regional cell which covered Irian Jaya and Australia . Indonesian police said Muklas has identified Mantiqe IV 's leader as Abdul Rahim — an Indonesian-born Australian . Jemaah Islamiah is also strongly suspected of carrying out the 2003 JW Marriott hotel bombing in Kuningan , Jakarta , the 2004 Australian embassy bombing in Jakarta , the 2005 Bali terrorist bombing and the 2009 JW Marriott and Ritz-Carlton hotel bombings . The Bali and JW Marriott attacks showed that JI did not rule out attacking the same target more than once . The JI also has been directly and indirectly involved in dozens of bombings in the southern Philippines , usually in league with the ASG
2005 Bali terrorist bombing
2005 Bali bombings
Jemaah Islamiyah