RESTRICTED ROOFTOP ACCESS

Precautions are also being taken to prevent accidents from fans attempting to watch the concert from nearby buildings.

Authorities are coordinating with building managers to restrict access to rooftops and upper floors at 25 buildings around the square. This aims to prevent situations such as overcrowding on rooftops, falls or objects being thrown into the crowd.

Six buildings closest to the square have also been asked to close their front entrances on the day of the concert to prevent spectators from bypassing the official access gates.

City officials have been inspecting the buildings and putting tailored safety arrangements in place with each property.

TRAFFIC RESTRICTIONS AND CROWD CONTROL

Major roads around the square, including sections of Sejong-daero and nearby streets, will be closed during the duration of the concert. Officials said trains may be instructed to pass through nearby subway stations if crowd levels become too high. 

After the concert, authorities will guide spectators out in gradual stages to prevent overcrowding.

Police are also preparing for the possibility that fans will gather in surrounding neighbourhoods after the show. As such, additional officers may be deployed to popular areas such as Itaewon, Hongdae and Seongsu-dong once the concert ends.