K-pop boy band star Jonghyun dies at age 27

Kim Jong-hyun, frontrunner of K-pop boy band SHINee, died on Monday, according to South Korean media reports. His death is believed to be a suicide.

The 27-year-old, known as Jonghyun, was reportedly found unconscious at an apartment in southern Seoul, per Yonhap News. According to Yonhap News' report, Jong-hyun experienced cardiac arrest and was transported to a hospital but never regained consciousness.

Though the cause of death is still unclear, investigators reportedly discovered burnt coal in a frying pan upon entering the apartment and suspect Jonghyun died from inhaling toxic fumes.

Jonghyun's sister, who is said to have called the authorities after receiving a concerning text from her brother, thinks he died by suicide.

Upon learning of the news, fans were their quick to share their sadness and support on Twitter.

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As Variety notes, since being formed in 2008, SHINee greatly rose in popularity in the music, fashion, and film industries. The five-member boy band recorded over 10 albums — the most recent, Five, was released in February.

If you want to talk to someone or are experiencing suicidal thoughts, text the Crisis Text Line at 741-741 or call the National Suicide Prevention Lifeline at 1-800-273-8255.

Here is a list of international resources.