<div class="block-content"><div class="styles__Container-sc-1ylecsg-0 goULFa"><span>A shark sighting has been reported off South Australia's Sellicks Beach, following an attack on a swimmer at nearby Port Noarlunga yesterday. </span></div></div><div class="block-content"><div class="styles__Container-sc-1ylecsg-0 goULFa"><span>Today's sighting came after Richard Vinall, a man in his 60s, was pulled from the water near the Port Noarlunga jetty after being attacked, left with shark bite wounds to his thigh. </span></div></div><div class="block-content"><div class="styles__Container-sc-1ylecsg-0 goULFa"><span>He remains in Flinders Medical Centre in a critical but stable condition.</span></div></div><div><div id="adspot-mobile-medium"></div></div><div class="block-content"><div class="styles__Container-sc-1ylecsg-0 goULFa"><strong><span>READ MORE:</span></strong><span> </span><a href="https://www.9news.com.au/national/roberts-smith-loses-appeal-against-war-crimes-claims/407ea267-3d8a-46c1-aea5-361f5a4c8e2c"><strong><span>Ben Roberts-Smith to take war crimes claims to High Court after losing appeal</span></strong></a><strong><span></span></strong></div></div><div class="block-content"><div class="styles__Container-sc-1ylecsg-0 goULFa"><span>The latest sighting has prompted renewed warnings for beachgoers to be cautious in the water.</span></div></div><div class="block-content"><div class="styles__Container-sc-1ylecsg-0 goULFa"><span>Damien Marangon from Surf Life Saving SA said there's been an increase in shark attacks recently. "There's no doubt in the last few years we have seen a rise in these hostile interactions," he said. </span></div></div><div class="block-content"><div class="styles__Container-sc-1ylecsg-0 goULFa"><span>He also commended the rapid response to yesterday's attack. </span></div></div><div><div class="OUTBRAIN" data-reactroot="" data-src="//www.9news.com.au/national/south-australia-shark-sighted-day-after-attack/1aefb513-9df7-49c1-a85a-08fe6284e16f" data-widget-id="AR_5"></div></div><div class="block-content"><div class="styles__Container-sc-1ylecsg-0 goULFa"><span>"Surf Life Saving and the rest of the community responded so well," he said.</span></div></div><div class="block-content"><div class="styles__Container-sc-1ylecsg-0 goULFa"><strong><span>READ MORE:</span></strong><span> </span><a href="https://www.9news.com.au/national/government-pushes-for-wage-increase-for-millions-of-workers/3eb5a514-55ca-4820-9781-4515a14ad500"><strong><span>Push for three million workers to get a pay rise above inflation</span></strong></a><strong><span></span></strong></div></div><div class="block-content"><div class="styles__Container-sc-1ylecsg-0 goULFa"><span>The incidents coincide with an extensive algae bloom, described as the largest of its kind in South Australia, which is believed to be impacting marine life and potentially drawing sharks closer to shore.</span></div></div><div class="block-content"><div class="styles__Container-sc-1ylecsg-0 goULFa"><span>In response to the heightened risk, government-operated shark patrols have been extended until May 25. </span></div></div><div class="block-content"><div class="styles__Container-sc-1ylecsg-0 goULFa"><span>Surf Life Saving SA is also considering additional safety measures, including live tracking systems and coastal camera networks to enhance surveillance capabilities. </span></div></div><div class="block-content"><div class="styles__Container-sc-1ylecsg-0 goULFa"><em><span>This article was produced with the assistance of</span></em><span> </span><a href="https://www.9news.com.au/technology/9express/16480c33-636a-461f-9c4f-d0e2522c722a"><em><span>9ExPress</span></em></a><em><span>.</span></em></div></div>