A former medic in the Imperial Japanese Navy says he carried out vivisection on about 30 prisoners, including women and children, in the Philippines during World War II.

It is the first time anyone in the wartime military has admitted that experiments were conducted on human beings in the Philippines, said Keiichi Tsuneishi, a professor of science history at Kanagawa University.

Such experiments are known to have been conducted in northern China by the notorious germ warfare Unit 731 of the Imperial Japanese Army and at a Kyushu University hospital.