India, Aug. 7 -- At least seven people, including three teachers, three students and even the suspect, died in a shooting incident at a secondary school in Thailand's Nonthaburi province on Friday, an incident that has left the country shocked.

The suspected shooter was himself a high school student, who was also believed to have shot dead the grandparents before heading to school.

Both had fatal gunshot wounds to the head. With the grandparents' deaths, the fatality count stands at nine, the newspaper reported.

Investigators believe that the suspect shot his grandparents dead and then went to school.

A student inside the school told the newspaper the gunman, dressed in a purple physical-education uniform, fired 26 rounds on the schoo...