B1A4 Sandeul's manager has been revealed as the perpetrator behind the hidden camera in musical actress Kim Hwan Hee's dressing room.

On April 17, Sandeul's label WM Entertainment confirmed the reports, stating, "We offer our deepest apologies to the actor and her agency, who must have been hurt by this incident. We understand the seriousness of the issue, and we'll do our best for the stability of the actor. We also apologize to the musical's staff and cast."

WM Entertainment then stated the manager who installed the hidden camera has been fired, and the label would be cooperating with the police for any investigation. The label stated, "Immediately after finding out the fact, the label excluded the field manager from the artist's accompanying work and dismissed him. The investigation into the concert hall, employee accommodations, and office building the employee entered was completed, and there was no additional damage. We'll cooperate with the police investigation as much as possible."

Last week, reports of a hidden camera found in Kim Hwan Hee's dressing room went viral. The musical actress, who's currently starring in 'Next to Normal', reported the discovery personally at the Gangnam Police Station in Seoul on April 9, and she revealed the camera was hidden in a sofa inside the dressing room used by 'Next to Normal' cast members.

Kim Hwan Hee's label Blue Stage also confirmed the dressing room was not a public waiting room, but a room used for musical actors to change into outfits and shower after performances. 

SEE ALSO: BLACKPINK's Jennie and Jisoo make donations to wildfire relief