``Knife brandishing at girls' junior high and girls' high school,'' wrote...Police begin investigation = South Korea

Police launched an investigation after a murder teaser was posted on an internet community in which a man brandished a knife towards a high school girl and a middle school girl.
According to the police on the 18th, the Seoul Gangdong Police Station arrested an unnamed suspect who posted threatening messages against students at a girls' high school in Gangdong-gu.
We are investigating the person. On the 17th, a murder teaser message was posted on the online community ``DC Inside'' that claimed to cause a terrorist attack at an all-girls high school and girls' school in Gangdong-gu, Seoul. Bad for postings
Along with a photo of the weapon, it was revealed that there was a text written saying, ``I will brandish a deadly weapon and kill at least 10 people at an all-girls high school, and I will cause a bomb attack at a girls' high school and kill 15 people.'' This post is currently
Currently, it has been deleted. Police are pursuing the suspects while taking security measures, including stationing police officers around schools designated as terrorist sites.