Sulli, a K-Pop singer best known for having been part of the band f(x), was found dead in her home on Monday afternoon near Seoul.
She was 25 years old.
According to multiple outlets, Sulli's manager found the artist's body and immediately called the police upon doing so.
Details are still coming in regarding how this tragedy transpired, but early indications are that Sulli took her own life. This same aforementioned manager told authorities that his client suffered from depression.
"So far, it seems she killed herself, but we will leave all possibilities open and investigate," a police official said in a statement.
The singer -- whose real name is Choi Jin-ri -- was discovered on the second floor of her house in Sujeong-gu, Seongnam, south of the capital city, Seoul.
No foul play is suspected and we've heard that a suicide note was found on the scene, but police have not yet divulged its content.
Sulli’s agency, SM Entertainment, referred to the news as “very hard to believe and sorrowful” in a statement to the Associated Press.
Sulli started her career in the entertainment industry as a child actress... prior to starting her singing career in 2009 as one of the four members of the K-pop girl group f(x).
She left the band in 2015 to return to acting, yet eventually continued releasing music as a solo artist.
Her most recent song, “Goblin,” came out this past June.
Sulli had the lead role in 2017 film "Real" and in "Pirates." She recently shot the television series "Hotel Del Luna" for tvN, and was attached to "Persona" for Netflix.
She had over five million followers on Instagram -- and she spoke openly in 2014 and 2015 about suffering at the end of social media trolls and bullies for several months.
Most notably, she came under fire years ago for dating an older rapper and then, in 2016, for performing on stage without a bra.
“Even close people left me,” she said back then. “I was hurt by them and felt there was nobody who understands me, which made me fall apart."
She also said this one time:
"My life is actually empty, so I feel like I'm lying to everyone by pretending to be happy on the outside.
"I asked around a lot for advice. They told me, ‘Everyone has a dark side in their lives but they live pretending that they don't. Don't think of it as weird.'"
Korean pop music -- or K-pop -- is one of the country's biggest exports in the past decade.
But the field has clearly taken its toll on many of its main participants.
Sulli, for example, was good friends with K-pop star Jonghyun, who took his own life in 2017 at the age of 27.
In May 2019, singer and actress Goo Hara -- formerly part of girl band Kara -- apologized to fans after being found unconscious at home after posting the word "Goodbye" on her Instagram page.
We send our condolences to the friends, family members and loved ones of Sulli.
May she rest in peace.