Detachment 88, the National Police's elite counterterrorism unit, arrested 21-year-old Muhammad Arshad at his family's home in Cilincing, North Jakarta, on Monday. The suspect was allegedly planning to launch an attack against police in the greater Jakarta area soon. Bomb experts also seized an improvised explosive device he was allegedly planning to use in the attack. The bomb, which, reportedly contained highly explosive triacetone triperoxide (TATP), was destroyed in a controlled detonation near the suspect's house, as it was deemed too unstable to transport.