Manila, June 23 -- Philippines authorities are reassessing school safety protocols and emergency preparedness following a rare and deadly school shooting that left three students dead and 20 others injured in Tacloban City.

The attack occurred on Monday when two students, aged 15 and 14, allegedly opened fire inside a public high school, shocking a country where school shootings are uncommon.

According to police, the suspects used a 9mm Glock pistol and a .38-calibre revolver. The youngest victim injured in the attack was just 12 years old. President Ferdinand Marcos Jr has ordered an investigation into the incident.

Senior civil defence officials said the tragedy has exposed gaps in emergency preparedness at educational institutions, ...