A scary video has emerged of a clown chasing a mother and her daughter in the woods in Chicago, USA.

The footage, shot on October 8, shows the scary clown coming out from behind trees and walking towards the filmer who tells her daughters to run.

"We saw a big buck and decided to follow it. Then all of a sudden I see something behind a tree ahead of us," she wrote online.

"It was a clown!! And it started chasing us!! We ran so fast and when I turned around it was gone. Scariest moment ever," she added.

"After the incident, I showed his neighbor who is a police officer. And he lives right by the woods also so he said he was going to check it out."

"The person chasing us disappeared. I was with my 8 and 11 year old daughters, getting them off the path and to the street was my main concern."

My daughters and I were walking in the woods in Chicago. We saw a big buck and decided to follow it. Then all of a sudden I see something behind a tree ahead of us. It was a clown!! And it started chasing us!! We ran so fast and when I turned around it was gone. Scariest moment ever