A search for a possible vessel in distress was launched off the coast of Port Kennedy.
The Joint Rescue Coordination Centre in Canberra notified WA Police that an unregistered EPIRB had been activated around 8.05am on Monday.
Water Police and the RAC rescue helicopter were deployed.
It was later determined a vessel had accidentally activated its EPIRB.
Arson Squad detectives continue investigation into Port Kennedy house fire
Arson Squad detectives are continuing their investigations into a house fire in Port Kennedy a month ago that left a woman with serious burns.
Peel Thunder premiership coach Adam Read to depart club for GWS
Peel Thunder dual-premiership coach Adam Read will depart the club to take up an assistant coaching role at Greater Western Sydney.
Man wanted for questioning over Wellard scooter theft
Police have released an image of a man who is wanted for questioning over the theft of an e-scooter in Wellard.
New murals to transform Coodanup, Madora Bay public spaces during Mandurah Arts Festival
Two well-known Mandurah locations will become giant canvases during this year's Mandurah Arts Festival, with new murals set to transform public spaces in Coodanup and Madora Bay.
Teen driver allegedly three times over legal alcohol limit in Rockingham
A 19-year-old man has had his car impounded after police initially stopped him for a breath test before connecting his vehicle to two alleged hoon incidents.
New councillors elected in Rockingham, Mandurah
The results are in for the Local Government Extraordinary Elections in the City's of Mandurah and Rockingham.
Rockingham's Stan Twight Reserve named 2026 WA Football Facility of the Year Award
The City of Rockingham's Stan Twight Reserve redevelopment has kicked another goal, winning the 2026 WA Football Facility of the Year at the WA Football Awards.
Homeless campers on Memorial Drive given 24 hours to vacate
Authorities, including police, have returned to the homeless camp on Memorial Drive near Rockingham.
Women injured in serious North Dandalup crash
Two women have been injured, one seriously, following a crash in North Dandalup.