HAIKOU, Dec. 27 -- An infant in south China's Hainan Province died on Friday after receiving hepatitis B vaccine, local authorities said, bringing the total of such cases to 12 in the country.

Medical specialists are on their way to look into the cause of death in Lin'gao County in Hainan.

This is the third infant death linked to hepatitis B vaccines produced by the Beijing Tiantan Biological Products Co. Ltd.