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.
Residents notified of military training exercise in Rockingham, Kwinana areas
Residents living around HMAS Stirling, Rockingham, Kwinana and Henderson may see an increased military presence this month.
WAFL: Riddle kicks match-winning goal after the siren to secure victory for Peel Thunder
Fremantle's Aiden Riddle has helped steer Peel Thunder to an eighth straight victory in a top-of-the-table clash against Claremont on Saturday.
Secret Harbour MP Paul Papalia to resign from politics
Long-serving Labor MP Paul Papalia is set to announce his resignation from politics today.
Baldivis Police ask for public's help to find wanted man
Baldivis Police are asking for the public's help to find a wanted 23-year-old man.
Authorities continue to monitor southern right whale in Mandurah Estuary
Authorities are keeping a close eye on a southern right whale that has spent nearly a week in the Peel-Harvey Estuary.
Australind couple plan retirement, support charities after $1.2 million Lotto win
An Australind couple are planning an early retirement and want to further support their favourite charities after winning a $1.2 million Saturday Lotto prize.
Rockingham Detectives seek owners of stolen property
Rockingham Detectives have released dozens of photos of stolen belongings, hoping their owners will come forward to claim the items.
Lakelands home damaged by fire
Fire has damaged a home in Lakelands.
New social housing apartments now complete in Falcon
Eight new social housing apartments in Falcon are now complete.