NMIXX took down their Halloween video on YouTube and postponed the fan sign event. 

On October 27th, NMIXX uploaded a video of the members celebrating Halloween. However, on October 30th, the said video went private following the Itaewon tragedy on October 29th. 

Moreover, the group canceled the fan sign event which was originally scheduled for October 30th. The event is now postponed until further notice. 

Meanwhile, a national mourning period has been declared for this national tragedy and many other artists and entertainment labels have announced the cancellation of parties and postponement of promotions.