A man has been charged after an assault in Dudley Park earlier this month.
Police will allege an altercation occurred between the man and two other people on Gillark Street, around 7pm on Tuesday, February 18.
During the incident, a 51-year-old man received serious head injuries while a 39-year-old woman received minor injuries.
Mandurah Detectives charged the man on February 26, with one count of grievous bodily harm with a circumstance of aggravation and one count of common assault in circumstances of aggravation.
He is due to appear in the Mandurah Magistrates Court on March 17.
Mandurah Detectives have taken to social media to appeal for further witnesses to the incident.
Anyone that might have information, or dashcam vision, is asked to call Crime Stoppers on 1800 333 000, or to make a report online at crimestopperswa.com.au.