A 43-year-old man is fighting for life in hospital following an altercation in Bunbury.
Just after 10.30pm on Saturday, a fight broke out between two men outside a licensed venue on Stephen Street.
During the fight, both men fell to the ground before being separated by onlookers.
One of the men received critical head injuries.
He was conveyed to Bunbury Regional Hospital in a critical condition and is currently on life-support.
A 29-year-old man was taken into custody and is currently assisting investigators with their inquiries.
Detectives would like to speak to anyone that witnessed the incident, or that saw the men prior to the incident.
It is believed a number or people were outside the venue at the time.
Anyone with information is asked to call Crime Stoppers on 1800 333 000 or to make a report online at crimestopperswa.com.au.
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