A woman suffered minor injuries after she was punched several times in the face by an unknown man who grabbed her from behind and dragged her to the ground in Westminster.

The attack happened about 5.30am on Wednesday, February 27.

Police said the 20-year-old woman was walking on a path along Wanneroo Road when a stranger grabbed her from behind and dragged her to the ground as she approached Amberley Way.

The victim was punched several times as she attempted to push the man away.

She called for help and managed to break free, before running away along Wanneroo Road.

Camera Icon Sapphire, 20, who was attacked in Westminster on Wednesday. Credit: The West Australian

The woman received minor injuries.

The man has been described as dark skinned with a slim build and approximately 170cm tall. He was wearing light blue/black shorts and a cap.

Detectives would like to speak to anyone who was in the area who may have seen the man, or captured dash-cam vision of the man.

Anyone with any information regarding this incident is asked to contact Crime Stoppers on 1800 333 000 or report online.