A snake climbed up a man's trousers when he rested on an outdoor chair in south China.

The video, captured in the city of Bazhong in Sichuan Province on April 25, shows a snake's tail hanging out of a man's trousers as he sat still on the chair to call the police and firefighters for help.

Passersby surrounded him to try to help but they were afraid the snake might bite the man.

Finally, an elderly man walked close to the man and dragged the snake out of his trousers quickly and then stamped on it.

The man did not notice the snake was in his trousers until a passerby spotted it and told him.

The snake was a non-poisonous elaphe carinata, reports said.

The video was provided by local media with permission.