South Korea arrests man in his 30s for posting ”Bomb Shinsegae Duty Free”

A man in his 30s who posted on social networking service (SNS) that he would blow up the Shinsegae Duty Free main store in Jung-gu, Seoul, South Korea, was suddenly arrested by police.
On the afternoon of the 2nd, Seoul Namdaemun Police Station announced that it had made an emergency arrest of the man in his 30s who posted the message, Mr. A, on suspicion of public intimidation. The arrest took place about five hours after the report was made.
Prior to this, at around 3:22 pm on the same day, the police received a report from Shinsegae that a comment threatening to blow up a duty-free store had been posted on Instagram, and the Shinsegae Duty Free main store and
The Shinsegae Duty Free store at Incheon Airport was searched, but no explosives were found, and customers at the duty free store were not evacuated.
A police official said, "We are proceeding with the related investigation, including questioning the suspect about the specific circumstances of the crime.
"We plan to do so," he said.