An ambulance drives toward Debsirin Nonthaburi School in Nonthaburi province, north of Bangkok, Thailand following a shooting there on August 7, 2026. Valeria Mongelli / Anadolu via Getty Images

A student shot several people at a high school outside Bangkok on Friday, killing at least six and wounding several others, police said.

The shooting happened at the Debsirin Nonthaburi School in Nonthaburi province northwest of the national capital, Royal Thai Police spokesperson Trairong Piwpan told The Associated Press.

Authorities gave conflicting information on the casualties that could not immediately be reconciled.

Trairong told news broadcaster Channel 3 the shooter was being hospitalized in serious condition. He said three teachers and three students were killed and 15 others were injured, two critically.

Health Minister Pattana Promphat said 22 people were injured with nine in critical condition. Some were injured from causes such as falls, and it wasn't clear how many were shot.

Deputy Interior Minister Polapee Suwunchwee told reporters at the scene that five teachers died and that the shooter killed his two grandparents at home before going to the school. He also said the shooter died at a hospital.

CBS News partner network BBC News reported that the gunman lived with his grandparents.

The Reuters news agency, citing police, reported that the shooter, who was 14 years old, fired at least 26 bullets and was found with 34 more rounds. The gun belonged to his grandfather, police said.

Trairong said the motive was still being investigated. He said the gun was believed to have been taken from a member of the student's family.

A witness told reporters that students hid inside a classroom while they heard gunshots from another building before police officers knocked on the door and cleared a way for them to leave the building.

About an hour after the shooting, people stood outside the school comforting one another and police and first responders walked around inside the school.

Prime Minister Anutin Charnvirakul offered his condolences and said he had ordered relevant officials to take care of the victims.

In February, a 17-year-old stole a gun from police and opened fire at a public high school in southern Thailand, briefly taking people hostage in a two-hour attack that killed one person and injured two others.

In 2023, a 14-year-old boy was accused of a shooting at a major Bangkok shopping mall.

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