(CNN) K-pop star Sulli, formerly of the band f(x), has been found dead at her home.

The 25-year-old singer and actress was found dead by her manager on Monday afternoon local time, police told CNN.

"So far, it seems she killed herself, but we will leave all possibilities open and investigate," a police official said.

Sulli's manager spoke to her on Sunday evening and went to check on her when he was unable to reach her on Monday.

The singer, whose real name is Choi Jin-ri, was found on the second floor of her house in Sujeong-gu, Seongnam, south of the capital city, Seoul.

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