An elderly man forced a woman out of her seat on a crowded train and threatened to beat her to death after she refused to give up her seat because she was on her period.
The incident took place on a train that was travelling between Huangtuling Station and Tujiachong Station in Changsha, Hunan province, in south-central China.
The angry exchange took place August 20 and was filmed by a fellow passenger identified as Mr Jin on his camera phone.
A man dressed in a yellow T-shirt, wearing sunglasses approached the young woman identified as Ms Fang and criticised her for not giving up her seat to older people.
Ms Fang can be heard saying: "It's fine if you ask me to give up the seat for you because you are old, but does the seat have a name?"