Economic Affairs Minister Azmin Ali has broken his silence over a sex video which implicates him.

"I categorically deny this vicious libel upon me.

"This is nothing but a nefarious plot to assassinate my reputation and character in an attempt to destroy my political career," he said in a statement this evening.

The PKR deputy president added he has instructed his lawyers to initiate legal action against the "individual" who made the allegation against him, as well as other perpetrators behind the issue.

Malaysiakini reported yesterday that videos of the alleged sexual encounter with Azmin were shared with reporters and several politicians, all of whom were added to mysterious WhatsApp groups in the wee hours of the morning.

Early this morning Haziq Abdullah Abdul Aziz, the senior private secretary to Deputy Primary Industries Minister Shamsul Iskandar Mohd Akin, claimed to have been the other man in the video.