A school of around 20 hammerhead sharks has been spotted off Point Peron Beach in Rockingham.
The Surf Life Saving helicopter sighted the sharks around 9.20am on Monday about 200 metres offshore.
They are between one and two metres in length.
Beachgoers are advised to be extra cautious when in the water.
Welfare concerns for woman with dementia last seen in Cooloongup
WA Police have welfare concerns for a missing 74-year-old woman.
Charges laid over fatal West Coolup crash
A 54-year-old man has been charged over a fatal crash in West Coolup, south of Mandurah.
Final boiler comes crashing down at old Kwinana Power Station
The final boiler at the old Kwinana Power Station has come crashing to the ground with residents reporting to feel the blast from kilometres away.
Kwinana Police seek public's help to find wanted man
Kwinana Police are asking for the public's help to find a 27-year-old man who is wanted for questioning over an ongoing investigation.
Police continue to investigate assault during Rockingham Christmas lights activation
Detectives are yet to find a boy who allegedly punched a man in the face during the Rockingham Foreshore Christmas lights activation last year.
Man charged after allegedly setting 12 grass trees on fire in South West state forest
A 49-year-old man has been charged after allegedly setting 12 grass trees on fire in the South West.
Lake Clifton Campers air rescued after becoming stranded in wild weather
Eight people and their dog had to be rescued by WA Police Air Wing Officers after going beach camping in severe weather conditions.
Men charged after traffic stop in West Pinjarra leads to 80kg drug seizure
Two men have been charged following the seizure of more than 80kgs of illicit drugs.
Green waste fees waived for Mandurah residents after weekend storms
The City of Mandurah is waiving green waste disposal fees for Mandurah residents to help with the cleanup after the weekend's storms.