Updated at 6.43pm:
The Chinese University of Hong Kong has successfully used frozen eggs and sperm to conceive a baby, its obstetrics and gynaecology department announced on Friday.
The department said this was a rare achievement. Internationally over the 'past 15 years fewer than 70 live births have been reported', it added.
A healthy baby boy, weighing 3.14 kilograms, was born in the Prince of Wales Hospital in April, the department's honorary assistant professor Tong Chiu said.
The university's reproduction technology team fertilised eggs, which had been frozen, with sperm - which had also been frozen in March 2003.
The eggs were collected from a 37-year-old woman unable to give birth normally. The sperm was collected from her husband.
Dr Chiu said: 'Although it is not so difficult to freeze embryos, successful pregnancies remain difficult to achieve from the freezing of human eggs.'