JAKARTA: Indonesian police arrested 11 suspected terrorists on Saturday allegedly planning attacks on the US embassy and an American consulate, a spokesman said.
"The group's objectives were to attack the US embassy in Jakarta and consulate-general in the eastern Javanese city of Surabaya," national police spokesman Suhardi Alius told reporters.
Alius said the group was also targeting a building in the capital near the Australian embassy where the US mining giant Freeport-McMoRan has an office.
"We also confiscated an explosive device from a home in the town of Madiun in eastern Java, as well as explosive materials and a bomb-making manual," Alius said.
Anti-terror police Detachment 88 made the arrests in four cities, including Jakarta, in a sweep on Java, saying that those detained belonged to a new network known as Hasmi.
Explosive materials were also secured from a location in Solo, central Java, and in Bogor on the outskirts of the capital.
Indonesia has faced a series of deadly attacks blamed on the Al-Qaeda-linked Jemaah Islamiyah (JI) over the last decade, including the 2002 Bali bombings that killed 202 people, mostly foreign tourists.
Indonesia has not seen a major attack since 2009 and authorities say a long crackdown on terrorism has debilitated JI.
But smaller terror cells aspiring to an Islamic caliphate through violent means have emerged, though none have carried out any serious attacks.