Singapore’s Internal Security Department (ISD) detains three self-radicalised teenagers under the Internal Security Act, with investigations involving plans to carry out attacks. The cases include a 14-year-old Secondary 2 student arrested in May, about a month before his intended attack on his school. ISD says the teenager created a detailed 21-page manifesto outlining an attack on his schoolmates and teachers and admitted he would have carried out the stabbings.

According to ISD statements reported by multiple outlets, two other teens are also detained for self-radicalisation and for making plans linked to attacks targeting schools in Singapore. The reports describe the group as having no links to any known extremist networks, with the radicalisation occurring independently. Authorities state the detentions are intended to prevent violent acts and to disrupt threats before they materialise.

Details on the teenagers’ identities beyond their ages, and the specific circumstances of the other two cases, are not presented in the provided summaries. The ISD is conducting investigations into the extent of radicalisation and related activities in each case.