She was found at about 5AM after suffering cardiac arrest at her home in Songdo International City in Yeonsu District, according to the police.
Actress Oh In Hye was found unconscious by a friend in a state of cardiac arrest at 5 am in her apartment.
Oh received CPR (cardiopulmonary resuscitation) and other emergency procedures before she was taken to a nearby hospital, where her breathing and pulse reportedly stabilised, according to The Korea Herald.
Police are now preparing to launch an investigation with evidence to suggest that the actress took her own life.
On September 15, a memorial parlor was prepared inside Inha University Hospital's mortuary for the late actress Oh In Hye. Her final resting place is the Incheon Family Park.
Before her death, On In-hye's last Instagram post was on September 12 wherein she uploaded selfies and wished everyone a great weekend.
In addition, a week ago the actress also shared a video on her YouTube channel talking about skin care routine.
Oh In Hye debuted in the 2011 movie "The Crime of Our Neighbors" and followed in "Red Vacation Black Wedding", "Horse Doctor" and "The Plan".
Oh In Hye began her acting career in the film "Sin of the Family" in 2011. She made a special appearance in the drama "Yeonnam-dong 539" in 2018.