Girl group IRRIS will be postponing the release of their upcoming single album.

According to their agency, Justice Records, the single "Stay W!th Me," which was scheduled for release on October 31 noon, will be postponed in light of the national mourning period. 

The agency also adds, "We will officially inform the new release schedule at a later time. We ask for generous understanding from fans who have been waiting for IRRIS' 'Stay W!th Me'. Our hearts also goes out to the deceased."

Meanwhile, a stampede occured earlier on October 29, in Seoul's Itaewon as thousands gathered for Halloween.