Bombs were discovered inside two houses in Solo on Saturday morning, but authorities are not saying whether or not any of the explosive devices have been detonated.
Police said they found bomb-making materials including a detonator, fertilizer, sulphur, potassium, a book about jihad and three firearms at the home of Baderi Hartono, who was arrested near his residence in Solo’s Griyan village at 5:30 a.m.
Baderi was one of two alleged terrorists arrested at separate locations in Solo in the early hours of Saturday. Police say they also discovered three bombs at the residence of the other individual, 45-year-old Rudi Kurnia Putra.
Rudi was arrested in Makam Bergulo, Solo, at 1:30 a.m. in front of Solo Square mall while disembarking a bus from Cilacap.
“RK was arrested when he got off a bus from Cilacap, while BH was arrested on the street near his house,” National Police spokesman Brig. Gen. Boy Rafli Amar said on Saturday.
“He [Rudi] kept three bombs in his house that were prepared to attack the police,” Boy said. “BH, as the leader of the group, is related to Rudi. He also has a bomb in his house.”
Police are linking the two suspects to Muhammad Toriq, who surrendered to police on Sept. 9 after multiple failed bomb plots came to light.
Dozens of police officers, a police bomb squad, the anti-terrorism unit Densus 88 and firefighters have secured the locations in Griyan village.
People living in the surrounding area have been asked to evacuate while the bomb squad assesses the situation.
Solo has been vexed by a string of terrorism-related attacks recently.
Last month, two men on a motorbike stormed a police post in Solo, fatally shooting an officer before fleeing the scene. That attack came two weeks after two gunmen fired on a separate police post in Solo, injuring two police officers. A day later, an assailant threw a grenade at another post, wounding two more officers.