An unconfirmed number of people were killed when a student opened fire at a ⁠school in Thailand north of Bangkok on Friday, authorities said.

Lt. Col. Pasakorn Chaitawiwong, the head of the ⁠Plai Bang subdistrict ​police department, ⁠told Reuters the number of deaths was still unknown.

The ⁠incident took place in the ​Bang ⁠Kruai district of Nonthaburi ‌province. Police identified the perpetrator as a student.

There were no ‌further details provided.

In photos ‌circulated by emergency workers, students streamed out of the Debsirin Nonthaburi School, ⁠on the northwestern outskirts of Bangkok, as ambulances operated.

In one photo, one person is seen lying down on a stretcher outside an ambulance, while another is attended to ‌by a medic.

In February, ​a teacher died and ‌a student was ⁠injured in southern Thailand’s Hat Yai ⁠district after a gunman opened fire ‌at a school.

This is a developing story and will be updated.