Thai authorities reported that nine people were killed after a teenage gunman opened fire at a renowned secondary school in Nonthaburi and at his residence on Aug. 7, 2026. The shooter, a 14-year-old student, killed his two grandparents at their home before attacking Debsirin School, where he fatally shot five staff members and ultimately himself. A 12-year-old girl who suffered injuries during the rampage died on Aug. 8, bringing the final death toll to nine.
More than 20 people sustained injuries in the violence, with 14 still receiving hospital treatment and seven listed in critical condition, officials confirmed.
A School With a Storied History
The assault targeted an institution deeply embedded in Thailand’s educational landscape. Established in Bangkok in 1885, Debsirin School ranks among the nation’s most prestigious secondary schools and operates multiple branches throughout Thailand. Former prime ministers, distinguished athletes and prominent diplomats number among its graduates. The Nonthaburi location where the shooting occurred is situated roughly an hour from the capital.
Chaos and Terror Inside the School
The violence began just after 10 a.m., Police Lt. Gen. Trairong Phiwphan of the Royal Thai Police told reporters. After killing his grandparents at their residence, the boy traveled to school and attended class normally. Once instruction started, he began firing inside his classroom, then moved into hallways and continued shooting as he went from room to room. Most of the injured ranged in age from 12 to 14. One student among the victims at the school died, while five staff members were killed there.
Students recounted terrifying moments as the attack progressed. A seventh-grade girl told the BBC her teacher had been speaking with her when the gunman entered and began firing. She and fellow students scaled the school fence to flee. Her mother said the girl told her upon reuniting: “I thought I’d never see you again.”
One student said he initially thought the first shots were firecrackers because the gunfire seemed so improbable. Teachers and students were seen fleeing the campus in panic. Officials warned the public to avoid the vicinity and told anyone still inside the building to hide and await rescue teams. The school posted an urgent request for blood donations on social media, while surrounding schools dismissed students early.
A Prepared and Deadly Attack
Gen. Kittiratt Phanphet, the national police chief, told reporters that forensic analysis showed the shooter’s aim was quite accurate, with multiple bullets hitting vital areas of victims’ bodies. The teen discharged more than 20 shots during the rampage, and authorities recovered over 30 rounds from his body after he killed himself. Thai Prime Minister Anutin Charnvirakul characterized the attack as “well prepared” with “clear steps and clear goals,” and said the attacker had “more than 30” bullets remaining when he ended his own life.
Police said the firearm belonged to the shooter’s grandfather and found no indication it had been obtained illegally. Investigators later removed computer equipment and boxes from the residence the boy shared with his grandparents. The teen lived with his grandparents after his mother and father separated. Police summoned both parents to a local station for questioning on Aug. 7. Authorities have not disclosed a motive, and the investigation continues.
Pressure Mounts on Gun Control
The massacre represents Thailand’s second shooting at a school this year and has dramatically escalated calls for stricter firearm regulations. Current Thai gun laws carry penalties of up to 10 years in prison for illegal firearms possession, but the country maintains one of Southeast Asia’s highest civilian gun ownership rates. Officials estimate roughly 40 percent of guns in circulation remain unregistered.
Responding to widespread public anger, Prime Minister Anutin vowed to propose new firearms legislation limiting gun-carrying privileges solely to government officials performing their duties. He voiced profound sorrow over the tragedy. “I don’t just feel sorry for the victims, but I feel sorry that this happened,” Anutin said. “How can this happen in our country?”
The scale of the bloodshed — and the apparent simplicity with which a 14-year-old accessed a firearm — has plunged the nation into grief and confronted legislators with pressing questions about civilian firearms access and campus safety. For numerous Thais, the sight of children climbing over fences and concealing themselves from a peer armed with a relative’s weapon has rendered the argument for reform undeniable.
