Kim Jong-hyun
via Like A Diamond / CC-BY-4.0

South Korea K-pop star Kim Jong-hyun is dead, after he was found in his hotel room in Seoul, reports the AP.

He was just 27 years old.

Details are unclear, but authorities are investigating whether suicide is the cause of death.

In a statement, SHINee’s management team, SM Entertainment, said: “We’re sorry to deliver such heart-aching, unfortunate news. On December 18, SHINee member Jonghyun left our side unexpectedly. He was found unconscious at a residential hotel in Cheongdam-dong, Seoul and was rushed to a nearby hospital but was declared dead on the evening of the 18th.”

“The deep sorrow cannot be compared to ones of his family who had to let go of their loving son and brother but the employees and artists of SM Entertainment, also in deep shock and sorrow, are offering condolences,” the statement continued. “Jonghyun was the best artist who loved music more than anyone and always worked hard for his performance… We ask you to refrain from making rumors or assumptions based on reports in respect of his family who are in deep sorrow from the sudden news. As his family wished, his funeral will be carried out in the quietest manner with his family members and co-workers.”

Jong-hyun rose to fame as the vocalist for the boy group Shinee when the band debuted in 2008. He would go on to make his solo debut in 2015, releasing his first EP titled Base.

In 2016, he released his first studio album, She Is, which took over the South Korean charts.