Students stood quietly outside their Bangkok school Friday as teachers checked their bags, pockets and even pencil cases under new security measures introduced after last week¡¯s deadly shooting.

Thailand¡¯s government has ordered schools nationwide to step up controls following the Aug. 7 attack near Bangkok, when a 14-year-old killed his grandparents, five school staff and a pupil before turning the gun on himself.

¡°An incident like this should not have happened in a school,¡± headteacher Suparong Sawangngamwong said after overseeing the new checks at Bangkok¡¯s Sawasdee Wittaya School.