A doctor in Hangzhou, Zhejiang Province, has become the latest Internet sensation, with netizens calling her the "prettiest girl," after video of her performing CPR on an elderly man who fainted was widely shared on social media.

The incident happened on the first day of the Qingming Festival, when people went to Hangwu Mountain in Hangzhou's Xiaoshan District to sweep tombs.

A witness surnamed Shen said she saw a man lying on the ground, but people nearby didn't know how to save him. At that moment, a woman rushed to the man, saying she was a doctor.

Shen said the woman kept performing CPR on the man until an ambulance arrived 20 minutes later.

According to reports, the woman, named Zhu Yunfei, is a doctor from Zhejiang Provincial Hospital of Chinese Medicine. She went to sweep tombs with her sister, but when she heard that someone had fainted, she rushed to help without any hesitation. She found that the man's lips were purple and he wasn't breathing and had no pulse, so she immediately took first-aid measures.