A 24-year-old woman surnamed Wang died after being trapped in the doors of an elevator in the Luohu district of Shenzhen, Guangdong Province Wednesday morning, local authorities said.The tragedy happened when the woman, working as an intern at a hospital in Changhong Mansion, was about to step out of the elevator on the third floor. The elevator's doors then slammed shut clamping Wang on her neck. It plunged and did not stop until the basement level, according to the district work safety authority.According to a widely circulated Weibo post, the nurse was killed at scene, with blood spraying on other passengers in the elevator. The incident is still under investigation.