A woman got out of a car while traveling in the Badaling Wildlife Zoo in the suburbs of Beijing on Saturday.
She was then dragged away by a tiger. Her husband and mother-in-law then rushed out of the car to rescue her.
Zookeepers say the elderly woman was then mauled to death by another tiger, while the younger woman was severely injured.
Tourists are forbidden by the zoo to get out of cars within the park.
Reports say the woman made the irrational move after quarrelling with her husband.