The student tried to flee to a park at the neighboring lake, where he jumped into the lake, but was apprehended only 12 minutes after the initial report, according to the Cheongju police.
The 18 -year -old was taken to the hospital when he suffered minor injuries.
“We are trying to determine details and reasons,” local police official told AFP.
Later, the police confirmed that they had confiscated four different weapons, including a boxer, the student.
“In this case, the student had the articles in their bag since their arrival at school, it therefore seems that others (teachers) were not aware of it,” said a high school conference.
Yoon Geon-Young, education superintendent of the province of Chungbuk, told journalists that “the incident was unpredictable and should never have happened”.
“Fortunately, the students remained safe and were neither direct witnesses to the situation nor traumatized,” said Yoon.
The case comes a few months after a teacher Fatally stabbed an eight -year -old student In a primary school in South Korea.
However, South Korea is generally a very safe country, with a murder rate of 1.3 per 100,000 people in 2021, according to official statistics – below the world average of six homicide deaths per 100,000 people.
