A 53-year-old man has been charged over an alleged incident in Dudley Park that left four people injured.
It's alleged the man, who is known to the victims, went to a home on Waterlily Drive around 9.15pm on Sunday where an altercation broke out.
As a result, four people were injured.
Three of them were taken by ambulance to Peel Health Campus while a fourth was conveyed to Fiona Stanley Hospital with serious injuries including multiple fractures.
A 53-year-old man from Dawesville has been charged with one count of aggravated burglary, two counts of unlawful wounding and three counts of aggravated assault occasioning bodily harm.
He will appear in the Mandurah Magistrates Court today.