Authorities are on the hunt for a golfer who was caught decapitating a defenceless goose with a golf club in Finland.

The cruel golfer is filmed lining up his golf club with the back of the bird's head before launching into a full forced swing - slicing the goose's head off.

The incident took place at the Vantaa Golf Park near the Finnish capital of Helsinki.

The club filed a criminal report after the video emerged on Liveleak, shocking the nation of Finland, The Sun reported.

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The club's managing director Ville Nurmi said the man who carried out the attack is not a member of the club.

Executive Director of the Finnish Golf Association Juha Korhonen told The Sun the incident is disgusting and the man will be brought to justice.

"It is impossible to understand. Such behaviour is in complete contravention of all the values and principles on which the golf game is built.

"We hope that the police will find out the identity of the person and that he will be punished according to his actions."

The video of the incident is being shared around social media in an attempt to identify the culprit.

It's not the first time geese have been targeted and killed on golf courses after a man in Hawaii tried to hit a goose with a golf club before running it over with his golf cart, killing the bird.