Indonesian police claim to have arrested Abu Dujana, the military leader of the Jemaah Islamiyah responsible for the 2002 Bali bombings.
- 2002 Bali bombings: A car-bomb on the Indonesian island of Bali explodes outside a nightclub killing at least 182 people, 75% of whom are said to have been foreign holidaymakers. Another 210 people are said to have been injured. The principal suspects for this terrorist incident are a group seeking to establish an Islamic state in Indonesia, Jemaah Islamiyah, although it could equally be the work of al-Qaeda. Another bomb explodes at around the same time in the nearby town of Denpasar, Bali. It had been said to be an attack on Australian holidaymakers due to its role in the liberation of East Timor.
- Umar Patek, a key suspect in the 2002 Bali bombings, faces trial on terrorism charges in Jakarta after being extradicted from Pakistan to Indonesia.
- Indonesian police confirm the death of their most wanted man, Noordin Mohammed Top, who was suspected of involvement in the 2009 Jakarta bombings and the Bali bombings in 2002.
- Huda bin Abdul Haq, Imam Samudra, and Amrozi bin Nurhasyim are executed by firing squad on Kambangan Island in Indonesia for their involvement in the 2002 Bali bombings.
- Zarkasih, the leader of the Islamic militant organisation Jemaah Islamiyah, goes on trial in Indonesia on terrorism charges.