SEOUL: A K-pop sex scandal claimed a second scalp as a singer who rose to fame after coming second in one of South Korea's top talent shows admitted secretly filming himself having sex and sharing the footage.

Jung Joon-young, 30, announced his immediate retirement from showbusiness amid allegations he shot and shared sexual imagery without his partners' consent.

"I admit to all my crimes," he said. "I filmed women without their consent and shared it in a chatroom, and while I was doing so I didn't feel a great sense of guilt," he added in a statement released late Tuesday.

Jung was one of three male artists in a group chat room where some members shared secretly filmed footage of a sexual nature of at least 10 women, according to local broadcaster SBS.

K-pop singer Seungri, a hugely successful member of boy band Big Bang who announced his retirement from show business on Monday amid a sex-for-investment criminal investigation, was also a member of the chatroom, the broadcaster said.

In 2016, Jung was charged with filming a video with a sexual partner without her consent and knowledge, but prosecutors dropped the case for lack of evidence after she withdrew her accusation.

Seoul Metropolitan Police Agency will question him later this week, an officer told AFP.