OSAKA — Osaka prosecutors arrested well-known music producer Tetsuya Komuro on Tuesday for allegedly defrauding an investor out of ¥500 million by signing a contract to sell the copyrights to music he mostly wrote but didn't own.

Komuro owned up to the fraud during questioning by prosecutors Tuesday, according to a source.

"I have nothing to say to defend myself. I'd like to reflect on myself and apologize to the victim," Komuro, 49, was quoted as saying by the source.