BANGKOK, Thailand (AP) _ Thailand's Supreme Court has upheld the six-year jail term of the publisher of Playboy magazine in Thailand for organizing wife-swapping parties at his clubs in Bangkok.

The ruling follows a five-year legal battle between Chuchart Thanamongkolchai, 60, and Thai state prosecutors, who accused him of profiting from activities that corrupted public morals.

Chuchart had set up three groups in 1995, where freewheeling Thais were encouraged to swap sex partners at his two clubs in Bangkok.

He denied any wrongdoing, often writing in Playboy that the partner-swapping helped people have more fulfilling sex lives.

In a ruling made Tuesday, the Supreme Court overruled the acquittal of the Appeals Court that had overturned his original guilty verdict.

He has been jailed in Bangkok for providing and charging for obscene and immoral services, a court official said on condition of anonymity.