A shark advice warning has been issued for beachgoers south of Mandurah after a partial whale carcass was reported at Preston Beach in the Shire of Waroona.
Authorities have warned the carcass may act as a possible attractant that could lead to sharks coming close to shore along the southern stretch of coast.
The carcass was reported by a member of the public at about 10am this morning.
Officers from the Department of Primary Industries and Regional Development, along with staff from other agencies are monitoring the situation and providing advice to relevant authorities.
The department has warned that while sharks may be present along the Western Australian coast throughout the year, people should exercise additional caution.