A hero doctor put his own life on the line to rescue one of his colleagues, by offering to swap places with her when a knife-wielding patient took her hostage. Accident and emergency doctor Lin Xikun knew exactly what he had to do when he walked in on nurse Long Yufang being threatened with a knife by a bare-chested man. The People's Daily Online reported he immediately offered himself up as an alternate hostage - allowing Long to go free. Hostage: The terrifying moment a man walked into a hospital in China and threatened a nurse with a knife was caught on film . The terrifying situation began at about 11am on April 9, when the man walked into the hospital in Dongguan, Guangdong Province. He had been brought in by police the night before. 'He told people that he didn't have any money to get home and not only did he not find anyone willing to give him the money to go home, he injured his leg in the process,' emergency department nurse Huang Chunyan recalled. When he returned the next day, he was carrying a knife. Video footage shows the man wheeling himself to the pharmacy, before he takes the knife out to threaten the nurse. But when he sat down with her, he reassured her: 'Don't worry, I am not going to harm you.' However, he did ask her to call the police and reporters. But Nurse Long - who realised now she would not be harmed - had already screamed out in fear. Hero: Within moments one of the accident and emergency doctors (right) walked in and took her place . Dr Lin heard the scream, and rushed to her aid. Nurse Huang said: 'Dr Lin then told the man "Look you are scaring the nurse. She is terrified. You just want a hostage right? Let me swap places with her".' The hostage taker agreed, and Dr Lin went to sit with him - allowing the nurse, who was clearly terrified, to escape. His ordeal went on for a further 10 minutes before the local police arrived, and the hostage taker voluntarily put the knife down. Gentleman: Doctor Lun Xikun, pictured in the room later, managed to keep him calm until the police arrived . However, his brave actions have won the doctor a legion of fans. 'He is like a real gentleman. Like a God,' one nurse said. A police spokesman said later the man had no intention of harming anyone, but just wanted to highlight his plight.
Man walked into hospital in Guangdong Province and took nurse hostage.
But brave doctor Lin Xikun offered to swap place with terrified woman.
Managed to keep the knife-wielding hostage taker calm until police arrived.
The accident and emergency doctor is being hailed as a hero by colleagues.