Three-day raids across Java ending yesterday saw the confiscation of explosive materials, an IS-inspired flag and nine arrests.
Several of the arrested men were allegedly linked to a planned suicide bombing in Jakarta during the New Year celebrations, according to documents seized in the raids.
A total of five suspects were arrested from a cell linked to the Islamic State, and four more from a cell linked to the Jemaah Islamiyah terror network behind several major assaults in Indonesia.
According to documents seized in the raids, police claim the two cells were identifying attack sites in Jakarta as well as West Java, Sumatra and Indonesian Borneo.
"We are taking preventive actions. We are implementing the highest alert," said police chief Badrodin Haiti.
"There are several things that (these groups) can do, like bombing or other violent acts such as shootings, burning, or unarmed attacks," he added.
Other security officials said nearly 150,000 police and military officers would be dispatched to guard important sites between December 24 and January 2, when police would be extra vigilant.
The increased security comes as senior ministers from Australia and Indonesia agreed to boost intelligence sharing, including on terrorism financing, following bilateral talks in both Sydney and Jakarta.
Indonesia, the world's most populous Muslim-majority country, suffered several major bomb attacks by Islamic radicals between 2000 and 2009, including the 2002 Bali bombings that killed 202 people.
But a crackdown has weakened the most dangerous extremist networks. However the emergence of IS has sparked alarm that Indonesians returning from battlefields in the Middle East could revive them.
You’ve reached your limit of {{free_limit}} free articles this month.
Subscribe now for unlimited access.
Already subscribed? Log in
Subscribe to read the full story →
Smart Quarterly
₹900
3 Months
₹300/Month
Smart Essential
₹2,700
1 Year
₹225/Month
Super Saver
₹3,900
2 Years
₹162/Month
Renews automatically, cancel anytime
Here’s what’s included in our digital subscription plans
Exclusive premium stories online
Over 30 premium stories daily, handpicked by our editors


Complimentary Access to The New York Times
News, Games, Cooking, Audio, Wirecutter & The Athletic
Business Standard Epaper
Digital replica of our daily newspaper — with options to read, save, and share


Curated Newsletters
Insights on markets, finance, politics, tech, and more delivered to your inbox
Market Analysis & Investment Insights
In-depth market analysis & insights with access to The Smart Investor


Archives
Repository of articles and publications dating back to 1997
Ad-free Reading
Uninterrupted reading experience with no advertisements


Seamless Access Across All Devices
Access Business Standard across devices — mobile, tablet, or PC, via web or app
