Hong Kong  - A clerk at a law firm has been sentenced to four months in jail after blackmailing a colleague over nude pictures taken during their sexual affair, a media report said Wednesday.

Shek Wing-hung, 38, was found guilty of blackmail and criminal extortion after his victim paid 200,000 Hong Kong dollars (25,600 dollars) to prevent the pictures being made public, the Standard said.

In mitigation, Shek said that he had been emotionally overwhelmed at the time of the offence.

The court was told that Shek forced his former lover to pose for the photos and later repeatedly harassed her in phone calls and text messages demanding payment for the pictures.

Shek was arrested after the woman told her husband about the affair.

The unnamed woman said she was still traumatized by the incident. (dpa)