K-pop star Sulli found dead at age 25 in her South Korea home

South Korean pop star and actress Sulli, whose legal name is Choi Jin-ri, was found dead in her home in Seongnam, located south of capital city Seoul, on Monday afternoon, authorities say.

The 25-year-old singer's body was discovered by her manager, who went to check on her after repeated unanswered phone calls, Seongnam Sujeong Police Department official Kim Seong-tae told the Associated Press.

Her manager said the star struggled with depression before her death, notesVariety

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K-pop star Sulli dies at age 25
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K-pop star Sulli dies at age 25
SEOUL, SOUTH KOREA - SEPTEMBER 03: Former member of South Korean girl group f(x), Sulli, attends the photocall for FENDI on September 03, 2019 in Seoul, South Korea. (Photo by Han Myung-Gu/WireImage)
SEOUL, SOUTH KOREA - SEPTEMBER 03: Former member of South Korean girl group f(x), Sulli, attends the photocall for FENDI on September 03, 2019 in Seoul, South Korea. (Photo by Han Myung-Gu/WireImage)
SEOUL, SOUTH KOREA - AUGUST 13: Former member of South Korean girl group f(x), Sulli, attends the photocall for 'Estee Lauder' at the Shilla Hotel on August 13, 2019 in Seoul, South Korea. (Photo by Han Myung-Gu/WireImage)
SEOUL, SOUTH KOREA - JULY 12: Former member of South Korean girl group f(x), Sulli, attends the PRADA Thunder Pop-Up Store open photocall on July 12, 2019 in Seoul, South Korea. (Photo by Han Myung-Gu/WireImage)
SEOUL, SOUTH KOREA - MARCH 14: Former member of South Korean girl group f(x), Sulli, attends the photo call for BOUCHERON 'Les Salons Boucheron' on March 14, 2019 in Seoul, South Korea. (Photo by Han Myung-Gu/WireImage)
SEOUL, SOUTH KOREA - MARCH 14: Former member of South Korean girl group f(x), Sulli, attends the photo call for BOUCHERON 'Les Salons Boucheron' on March 14, 2019 in Seoul, South Korea. (Photo by Han Myung-Gu/WireImage)
SEOUL, SOUTH KOREA - MARCH 14: Former member of South Korean girl group f(x), Sulli, attends the photo call for BOUCHERON 'Les Salons Boucheron' on March 14, 2019 in Seoul, South Korea. (Photo by Han Myung-Gu/WireImage)
SEOUL, SOUTH KOREA - FEBRUARY 13: Former member of South Korean girl group f(x), Sulli attends the photocall for 'Estee Lauder' Pop-up Store Opening on February 13, 2019 in Seoul, South Korea. (Photo by Han Myung-Gu/WireImage)
SEOUL, SOUTH KOREA - DECEMBER 21: South Korean singer/actress Choi Jin-ri (aka Sulli) attends Longchamp event on December 21, 2018 in Seoul, South Korea. (Photo by Visual China Group via Getty Images/Visual China Group via Getty Images)
SEOUL, SOUTH KOREA - DECEMBER 21: Former member of South Korean girl group f(x), Sulli attends the photocall for the LONGCHAMP at Lotte Department Store on December 21, 2018 in Seoul, South Korea. (Photo by Han Myung-Gu/WireImage)
SEOUL, SOUTH KOREA - OCTOBER 10: Former member of South Korean girl group f(x), Sulli attends a promotional event for the 'Estee Lauder' on October 10, 2018 in Seoul, South Korea. (Photo by Han Myung-Gu/WireImage)
SEOUL, SOUTH KOREA - OCTOBER 10: Former member of South Korean girl group f(x), Sulli attends a promotional event for the 'Estee Lauder' on October 10, 2018 in Seoul, South Korea. (Photo by Han Myung-Gu/WireImage)
SEOUL, SOUTH KOREA - MAY 16: Former member of South Korean girl group f(x), Sulli attends the photocall for the BOUCHERON 160th Anniversary 'Experience Boucheron' Pop-Up Store Opening on May 16, 2018 in Seoul, South Korea. (Photo by Han Myung-Gu/WireImage)
SEOUL, SOUTH KOREA - MAY 16: Former member of South Korean girl group f(x), Sulli attends the photocall for the BOUCHERON 160th Anniversary 'Experience Boucheron' Pop-Up Store Opening on May 16, 2018 in Seoul, South Korea. (Photo by Han Myung-Gu/WireImage)
SEOUL, SOUTH KOREA - JANUARY 08: Former member of South Korean girl group f(x), Sulli attends the photocall for "Estee Lauder" Launch on January 8, 2018 in Seoul, South Korea. (Photo by Han Myung-Gu/WireImage)
SEOUL, SOUTH KOREA - JANUARY 08: Former member of South Korean girl group f(x), Sulli attends the photocall for "Estee Lauder" Launch on January 8, 2018 in Seoul, South Korea. (Photo by Han Myung-Gu/WireImage)
SEOUL, SOUTH KOREA - JUNE 27: Actress Sulli attends the VIP screening of 'Real' on June 27, 2017 in Seoul, South Korea. (Photo by Han Myung-Gu/WireImage)
SEOUL, SOUTH KOREA - OCTOBER 27: Former member of South Korean girl group f(x), Sulli attends the "Roger Vivier" Buckle Up Party at the Shilla Hotel on October 27, 2017 in Seoul, South Korea. (Photo by Han Myung-Gu/WireImage)
SEOUL, SOUTH KOREA - JUNE 26: (L1,L2) South Korean actor Kim Soo-hyun and South Korean actress Sulli attend the test screening of film "Real" on June 26, 2017 in Seoul, South Korea. (Photo by Visual China Group via Getty Images/Visual China Group via Getty Images)
SEOUL, SOUTH KOREA - JUNE 07: Sulli of girl group f(x) attends the photocall for Volez, Voguez, Voyagez - Louis Vuitton Exhibition at DDP on June 7, 2017 in Seoul, South Korea. (Photo by Han Myung-Gu/WireImage)
SEOUL, SOUTH KOREA - FEBRUARY 24: Sulli of girl group f(x) attends the photocall for Dior 2017 S/S Collection at Shinsegae Department Store on February 24, 2017 in Seoul, South Korea. (Photo by Han Myung-Gu/WireImage)
SEOUL, SOUTH KOREA - SEPTEMBER 27: Sulli of girl group f(x) attends the "AERIN" Boon The Shop Launch on September 27, 2016 in Seoul, South Korea. (Photo by Han Myung-Gu/WireImage)
SEOUL, SOUTH KOREA - MARCH 04: Sulli of girl group f(x) attends photocall for launch of SK-II 'Genoptics' at Lotte Department Store on March 4, 2016 in Seoul, South Korea. (Photo by Han Myung-Gu/WireImage)
SEOUL, SOUTH KOREA - SEPTEMBER 30: Sulli poses for photographs during the K-Beauty Close-up by ARTISTRY at Dongdaemun Square on September 30, 2015 in Seoul, South Korea. (Photo by ilgan Sports/Multi-Bits via Getty Images)
SEOUL, SOUTH KOREA - SEPTEMBER 03: Sulli poses for photographs during the LANVIN Products Launching Event at Dress Garden on September 3, 2015 in Seoul, South Korea. (Photo by ilgan Sports/Multi-Bits via Getty Images)
SEOUL, SOUTH KOREA - APRIL 30: Sulli of girl group f(x) attends the photocall for Louis Vuitton Exhibition Series 2 "Past - Present - Future" at D Tower on April 30, 2015 in Seoul, South Korea. (Photo by Han Myung-Gu/WireImage)
SEOUL, SOUTH KOREA - JANUARY 22: Sulli of girl group f(x) attends the FURLA 2015 SS presentation at COEX Mall on January 22, 2015 in Seoul, South Korea. (Photo by Han Myung-Gu/WireImage)
SEOUL, SOUTH KOREA - MARCH 20: Sulli of girl group f(x) attends the "DECKE" launch event on March 20, 2014 in Seoul, South Korea. (Photo by Han Myung-Gu/WireImage)
SEOUL, SOUTH KOREA - FEBRUARY 26: Sulli of f(x) attends the Etude House 'Magic Any Cushion' photo session at Connoi Space on February 26, 2014 in Seoul, South Korea. (Photo by Choi Soo-Young/Multi-Bits via Getty Images)
CHANGSHA, CHINA - DECEMBER 31: (CHINA OUT) Victoria, Amber, Luna, Sulli and Krystal of South Korean girl group f(x) perform on the stage in Hunan Television New Year Countdown Concert on December 31, 2013 in Changsha, China. (Photo by Visual China Group via Getty Images/Visual China Group via Getty Images)
NAMYANGJU, SOUTH KOREA - DECEMBER 12: Sulli of girl group f(x) is seen on location for "The Pirates" on December 12, 2013 in Namyangju, South Korea. (Photo by Han Myung-Gu/WireImage)
NAMYANGJU, SOUTH KOREA - DECEMBER 12: (L-R) South Korean actors Lee Kyung-Young, Kim Nam-Gil and Son Ye-Jin are seen on location for "The Pirates" on December 12, 2013 in Namyangju, South Korea. (Photo by Han Myung-Gu/WireImage)
SEOUL, SOUTH KOREA - JULY 08: Sulli of f(x) attends the OMEGA CO-AXIAL Exhibition at Beyond Museum on July 8, 2013 in Seoul, South Korea. (Photo by Choi Soo-Young/Multi-Bits via Getty Images)
SEOUL, SOUTH KOREA - FEBRUARY 22: (L-R) Victoria and Sulli of girl group f(x) attend a promotional event for the 'Christian Dior' Pop Up Store Opening at My Boon on February 22, 2013 in Seoul, South Korea. (Photo by Han Myung-Gu/WireImage)
SEOUL, SOUTH KOREA - JANUARY 31: (L-R) Victoria, Amber, Krystal, Sulli and Luna of girl group f(x) attend the 22nd High1 Seoul Music Awards at SK Handball Arena on January 31, 2013 in Seoul, South Korea. (Photo by Han Myung-Gu/WireImage)
SEOUL, SOUTH KOREA - DECEMBER 31: Sulli of South Korean girl group f(x) attends during the 2012 SBS Drama Awards at SBS Prism Tower on December 31, 2012 in Seoul, South Korea. (Photo by Han Myung-Gu/WireImage)
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While no suicide note was found at the scene, officials said there were no signs of foul play and that security camera footage at the victim's home showed no signs of an intrusion.

"The investigation is ongoing, and we won’t make presumptions about the cause of death," Kim added.

Sulli rose to fame in 2009 as an original member of the K-pop girl band f(x) before taking a break in 2014, citing severe cyberbullying as the driving factor behind the decision.

She quit the group for good in 2015 and began focusing more on her acting career, appearing in multiple major Korean films before returning to music in 2019 with the solo album "Goblin."

She was also a close friend of Jonghyun, the lead vocalist of South Korean boy band Shinee, who killed himself in December 2017 amid his ongoing struggles with depression. 

SM Entertainment, Sulli's agency, released a statement following her death, calling the tragedy "very hard to believe and sorrowful."

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