A tragic shooting at a secondary school in Thailand has left a teacher dead and at least 20 people injured, sending students and staff into panic as emergency responders rushed to the scene.

The incident occurred at Debsirin Nonthaburi School in Nonthaburi Province, just outside Bangkok, on Friday.

Authorities said the suspected gunman, believed to be a student, opened fire on the school campus before later dying. Police immediately sealed off the area while rescue workers evacuated students and transported the injured to nearby hospitals.

Initial reports indicated that one teacher was killed and around 20 people sustained injuries, though officials warned that casualty figures could change as investigations continued. Authorities are interviewing witnesses and reviewing evidence to determine the motive behind the attack.

Thailand’s government has expressed condolences to the victims’ families and pledged support for those affected. The shooting has renewed concerns about school safety and access to firearms, with officials promising a full investigation into the circumstances surrounding the tragedy.