The babies. [Shanghai Daily]

A woman, 29, gave birth to identical quadruplets at the Obstetrics and Gynecology Hospital of Fudan University in east China's Shanghai Municipality on Thursday.

The woman, surnamed Wu, is the third person in the last 12 years to deliver quadruplets at the hospital.

The chances of natural pregnancy with quadruplets is only one in 500,000, the hospital said.

Wu was accepted into the hospital in the 29th week of her pregnancy and needed a cesarean sectionin the 31st week after doctors found issues with the blood flow in her umbilical cord.

The four babies, all girls, were born at about 5pm and weighed between 780 to 1,120 grams.

The hospital said the babies are in stable condition but have to be kept in intensive care because they were born premature.

Wu, who already has a son and a daughter, claimed the pregnancy was unplanned.

(Source: Shanghai Daily)

Editor: Joyce Dong