At least three students and three teachers have been killed in Thailand’s deadliest school shooting in years.

At least one teacher was killed and four other people injured by a student who opened fire at a school in Thailand on Friday.

One 18-year-old student told Reuters he initially thought there were firecrackers going off or someone banging an object. "I didn't think it was a gun at first," he said. "There were many shots: bang ...