A 14-year-old student killed his grandmother and grandfather at their home, then went to a school on the outskirts of Bangkok, where he opened fire and killed six more people, while at least 15 others were injured. After the massacre, the underage attacker took his own life.
The deadly attack took place on Friday shortly after 10 a.m. local time at Debsirin Nonthaburi Secondary School, located in Nonthaburi Province, on the northwestern outskirts of Thailand’s capital.
According to initial police information, the 14-year-old killed his grandparents before arriving at the school. Their bodies were later found at their home. Thailand’s health minister confirmed that authorities suspect the teenager was responsible for their deaths as well.
Police are still investigating the motive behind the attack. It is believed that the handgun used in the massacre belonged to his grandfather, who worked as a teacher.
When the shooting began at the school, complete chaos broke out. Students tried to find shelter inside classrooms, while others fled the building. Photos from the scene showed terrified students leaving the school complex, emergency medical teams treating the wounded, and teachers hugging each other in tears.
BREAKING The suspect in a school shooting in Thailand killed a total of eight people Friday, police say.
— AFP News Agency (@AFP) August 7, 2026
First he shot his grandparents dead, using his grandfather's handgun, then went to his school north of Bangkok and killed three teachers and three students, police say pic.twitter.com/tAAvN92f6i
One student said he and his classmates locked themselves inside a classroom after hearing gunshots coming from another part of the school. They only left after police officers knocked on the door and told them it was safe to come out.
An 18-year-old student told Reuters that he initially did not realize he was hearing gunshots.
“I thought they were firecrackers or that someone was hitting something. I didn’t think it was a gun. There were many shots — bang, bang, bang. Then there was silence, and then the shooting started again,” he said.
According to reports from the scene, the attacker was seen reloading ammunition inside the building during the rampage. Local media published photos showing the student wearing a purple school uniform with a black bag across his body, while bullet casings could be seen scattered on the floor around him.
Heavily armed police units soon arrived at the scene, securing the complex and evacuating students and staff.
Footage capturing the moment the perpetrator hurriedly loaded ammunition before officers intervened and fatally shot him to bring the situation to an end.#MassShooting #กราดยิง #เทพศิรินทร์ #ข่าวด่วน #บางกรวย #Thailand #Nonthaburi #ThepsirinSchool #SchoolShooting pic.twitter.com/iYKRY9JOwC
— VIRAL VOLT (@ViralVolT1) August 7, 2026
Rescuer Kiatikhun Verapongpradith said his team arrived while the attack was still ongoing. Among the injured people they treated were students who had been shot in the back, chest, and arms.
A dead teacher was found on one of the upper floors, while a severely injured female teacher was discovered in another room with wounds to her chest and arm.
“We tried to resuscitate her for about 30 minutes and immediately transported her to hospital. We were unable to restore her heartbeat, but we did everything we could,” the rescuer said.
Police later announced that the student suspected of carrying out the attack had taken his own life. Photos from the scene also showed medical teams attempting to revive him.
Debsirin Nonthaburi School is one of the larger educational institutions in the area. During the 2025 school year, it had around 3,100 students and 147 teachers.
🇹🇭‼️🚨 School shooting in Thailand!
— Lord Bebo (@MyLordBebo) August 7, 2026
A student opened fire at a school in Bang Kruai and killed 6!
– 3 teachers
– 3 students
– at least 20 injured
The shooter at Debsirin Nonthaburi School in Bang Kruai district killed himself after the shooting, according to officials at the… pic.twitter.com/qxWE6zbPjx
Thai Prime Minister Anutin Charnvirakul expressed condolences to the victims’ families and ordered relevant institutions to provide all necessary assistance to the injured and the families of those killed.
“This is a terrible incident. It should never have happened. How is it possible that something like this could happen in our country?” the prime minister told reporters at government headquarters in Bangkok.
Following the massacre, the debate over gun control in Thailand was reopened. The country has one of the highest rates of gun ownership in the region. It is estimated that around 10 million firearms are in circulation among the population, meaning approximately one firearm for every seven residents.
Opposition People’s Party leader Natthaphong Ruengpanyawut said the tragedy must serve as a reason for a serious review of existing regulations.
He stated that, although the motive behind the attack is still unknown, the fact that such a crime occurred in an educational institution, which should be one of the safest places in society, serves as a warning that Thailand must systematically reassess its gun control policies.
This was not the first mass shooting in a Thai educational institution. In February, police wounded and arrested a teenager who opened fire at a school in the south of the country, killing the principal and injuring two students. The attacker had previously stabbed a police officer and stolen his 9mm service pistol.
The deadliest case occurred in 2022, when a former police officer armed with a gun and knife stormed a nursery in northern Thailand and killed 24 children and 12 adults. It was one of the deadliest massacres in the country’s recent history.
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