A grandfather is recovering in hospital after being stabbed outside of his Parmelia home.
Police were called to Skottowe Parkway around 5.15pm on Wednesday following reports of a large group of people fighting.
It's understood the brawl involved feuding family members.
A 59-year-old man was stabbed after trying to intervene.
A neighbour, who is a nurse, rushed to his aid.
"He had been stabbed three times, once in the neck, the head and the leg, quite deep, quite severe and he was going into hemorrhagic shock," the nurse told 9NEWS.
"He was dying, he was bleeding out."
The victim's wife, Debra Ryder, has called for calm among the families after her grandchildren witnessed the attack.
"They're traumatised, we had to let them go to a safe house," she told 9NEWS.
"We've got to be a family, a strong family, but at the moment all the families are apart."
Inquiries are ongoing with Rockingham Detectives.
Anyone with information regarding the incident, including CCTV or dashcam footage of the area, is urged to call Crime Stoppers on 1800 333 000 or report the information online at www.crimestopperswa.com.au.
People reporting information to Crime Stoppers may remain anonymous if they wish.
Peel region businesses, organisations encouraged to apply for new round of RED grants
Mandurah Police continue search for missing man
New mural unveiled at Austin Lakes Baptist College
MARC staff recognised at 2025 Royal Life Saving WA Bravery Awards
Hefty fines for local fisherman after catching pink snappers out of season
WATCH: Shocking footage captures youths hanging out of moving car in Secret Harbour, Golden Bay
Shire to leave whale carcass to rot on Preston Beach due to cost of removal
10-year-old boy charged over attempted armed robbery in Warnbro
Dawesville couple charged over alleged cruelty to sick, elderly dog