The boy took his own life after killing a maths teacher, a Thai language teacher, a guidance counsellor, a student affairs administrator and a secretary at the school.

The shooting incident took place at the Debsirin Nonthaburi School in ​the ‌Bang Kruai district of Nonthaburi, just north of the capital city of Bangkok. Several people were killed in the attack.

Shooter kills his grandparents before going to school, dies in hospital after shooting; authorities say they believe he took the gun from a member of his family

The 14-year-old perpetrator also died.

Officials said the perpetrator was also dead after killing three teachers and three students at the school north of Bangkok.

Thailand faces fresh pressure over gun laws after a 14-year-old uses his grandfather's gun to kill seven people, wound 23 and then die by suicide.

Bangkok: The death toll in the school shooting that took place earlier on Friday at Debsirin Nonthaburi School in Thailand's Nonthaburi province has risen

A 14-year-old boy killed his grandparents before opening fire at a school in Bangkok, leaving at least seven people dead. Newly surfaced visuals capture the terror inside a classroom, with students hiding beneath their desks as gunshots continued outside.