A 14-year-old student at Debsirin Nonthaburi School in Nonthaburi Province, north of Bangkok, carried out a shooting shortly after 10:00 a.m. local time on August 7, 2026, killing multiple people before committing suicide [1, 2].

Before the attack at school, the student shot and killed his grandparents at their home [3, 4]. He then went to the school where he fired at least 26 rounds from a handgun registered to his grandfather, killing three teachers, three students, and himself, according to most reports, with total deaths commonly cited as seven [3, 2, 5]. Injury estimates range from 15 to 23, with at least 22 wounded according to some sources [1, 3, 6].

Police found a handgun and large quantities of ammunition in the shooter's backpack, with at least 34 bullets carried [2, 6]. The teen was described by relatives and local officials as a quiet, reserved boy who may have faced bullying and academic pressure. His aunt said, "He wasn’t particularly cheerful; he was just very quiet" [3]. Village headman Pannatorn Temrak added, "They loved each other very much," referring to the shooter and his grandparents [3].

Thai Prime Minister Anutin Charnvirakul visited the school the same afternoon and called the event "terribly tragic," stating, "It should not have happened. We cannot let this happen again." He said the shooter’s behavior indicated a premeditated attack influenced by pressure [6]. Crime expert Trynh Phoraksa noted, "Extreme youth violence is rarely caused by a single factor but by personal, family, school, and peer factors combined" [7].

Debsirin Nonthaburi School announced it would close from August 10 to 14 to support the recovery of students and staff affected by the shootings [6]. Investigations into the motive and circumstances remain ongoing [3, 5].