Michael Jackson's ex-wife Debbie Rowe has told an Irish newspaper the Thriller singer is not the biological Father of their children Prince Michael Jr and Paris.

The Sunday World quotes Rowe, who was married to Jackson for three years between 1996 and 1999, as saying her eight-year-old son and seven-year-old daughter were both conceived using anonymous semen brought from a sperm bank.

She tells the paper: "Michael knows the truth - that he is not the natural father of Prince Michael Jr and Paris. He has to come clean.

"I have no information whatsoever about the identity of the semen donor for either child as such (semen) was obtained anonymously from a semen bank under an agreement of confidentiality."