At least eight people were killed on Friday after a student opened fire at a school in Thailand before turning the gun on himself, a national police official said.The gunman first shot and killed his grandparents at their home before opening fire at the school.The student fired 26 rounds, while another 34 rounds of ammunition were recovered from the scene, according to a police statement.Videos from the scene showed students ducking under their desks as gunshots could be heard in the background.The shooting took place at Debsirin Nonthaburi School in Bang Kruai district of Nonthaburi province, northwest of Bangkok. Police identified the shooter as a student.Lt Col Dechrapee Kongdee, commander of the Nonthaburi Provincial Police, confirmed the casualties to Reuters and said the suspected gunman had died by suicide. He said those injured included one teacher and three students.An 18-year-old student said he initially mistook the sound of gunfire for firecrackers going off or someone banging an object.“I didn’t think it was a gun at first,” he was quoted as saying by Reuters. “There were many shots: bang bang bang. Then it went quiet. Then it started again.”According to district authorities, the school had around 3,100 students and 147 teachers enrolled during the 2025 academic year.The latest incident comes months after a teacher was killed and a student injured in a separate shooting at a school in Hat Yai district in southern Thailand in February.