Shark warnings at popular Sydney beaches as rain and floods muddy the waters

Experts say nutrients from the land flushed into the sea by heavy rains can attract fish and other animals to feed - this can then attract sharks

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Experts have urged Sydneysiders to avoid swimming at murky beaches due to increased risk of shark encounters following torrential rain that has caused devastating damage along Australia's east coast.

There have been numerous shark sightings in Sydney in recent days. On Tuesday, the Northern Beaches Council issued an alert that a shark more than 3 metres long had been spotted off Manly Beach, which was subsequently closed.

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