Another post on message board: ”Explosives planted at KINTEX”... Police ”unable to find” = South Korea

Police have launched a search after a message board post claiming to have placed explosives at the Kintex event venue in Goyang, Gyeonggi Province, South Korea, has resurfaced online.
According to police and other sources, at around 10:25 a.m. on the 3rd, a message was posted on a bulletin board stating that "explosives had been planted" at a gaming event venue at KINTEX Exhibition Hall No. 2.
Police and military bomb disposal teams were called in to search the venue, but no explosives were found. Event organizers also inspected belongings and delayed the entry of spectators.
Prior to this, a similar post was made around 8:40 pm on the 1st, stating that an explosive device was to be set up, and around 200 visitors who had been waiting in line for admission the following day were killed.
In one incident, police and military forces searched the area, but no explosives were found. A teenage boy came to the police station the next day with his parents and said,
"I made the false post because I was upset about the fact that I had to wait in a long line to get into the event venue," he said. Police are tracking down the creator of the post this morning.