Security measures at Japanese schools became compulsory only after a June 2001 attack at an Osaka elementary school, where eight children were stabbed to death and 15 others were injured by an intruder who was later sentenced to death and executed.
Hi June 2001, tiko ra Japani a ri ri emahungwini endzhaku ka loko wanuna loyi a a hlangane nhloko a nghene exikolweni a dlaya vana va 8 hi mukwana, va ha ri ni lembe kumbe mambirhi va sungule ku nghena xikolo, a tlhela a halahala van'wana va 15.