SINGAPORE — Students at River Valley High School in Boon Lay had their daily routine disrupted on Monday (July 19) when they were told to urgently return to their classrooms around lunchtime.

For at least five hours, parents of the school’s students were left in the dark as police cars and an ambulance entered the school compound, while media reports first emerged that a student had purportedly been killed on campus and later, that the incident allegedly involved a 16-year-old boy and another male student, 13.