SEOUL - A South Korean Twitter user has killed himself after leaving a suicide note on the social networking service in the country's first such case, police said Wednesday.

Police found the body of Lee Kye-Hwa, 27, a former disc jockey in a Seoul bar, hanging from a ferry dock on the Han river in Seoul early Tuesday.

His family reported him missing on Sunday when he posted a short Twitter message in Korean.

"I'm going to commit suicide. To all of you, even those who shared the slightest friendship with me, I love you," he wrote.

"Investigators concluded he had committed suicide," a spokesman for Seoul's Mapo police station told AFP, confirming the wording of the Twitter note.

Access to Lee's account was not possible Wednesday.

The Korea Times said Lee had also left separate written suicide notes for his family and friends, complaining of financial troubles.

It said some of his Twitter followers had tried in vain to trace his whereabouts after reading the suicide message.

News of Lee's death was spreading fast through Twitter Wednesday as his former followers expressed condolences, shock and regret. "I wish he may rest in peace in Heaven, my heart is deeply hurt," one wrote.