Several popular Sydney beaches have been closed after sharks attacked a dolphin near the city.
Following the attack, at least two bull sharks were spotted in the Shelly Beach area of northern Sydney, and authorities closed all nearby beaches as a precaution.
The injured dolphin circled the shallow waters before dying on the beach.
Manly Open Surf, a beach carnival held over the weekend, has been canceled.
After the attack, which occurred around 07:00 local time on Saturday, lifeguards removed people from the water (20:00 GMT on Friday).
Hundreds of people were getting ready to compete in the festival.
According to Tracey Hare-Boyd, a spokeswoman for Surf Life Saving New South Wales (SLSNSW), no one was injured or involved in the attack.
The SLSNSW said it was monitoring shark activity with a drone and urged people not to enter the water until lifeguards deemed it safe.