Two beaches in South Australia have been closed following the emergence of unusual off-white foam and dead fish on the shores. Reports from surfers in Waitpinga indicate that they have experienced sore eyes, sore throats, and coughing after coming into contact with the water.

Officials suspect that a microalgal bloom, possibly caused by recent hot and dry weather, is affecting both marine life and humans.

Scientists are currently analyzing water samples to identify the organism responsible, a process that may take several days. The foam, a byproduct of decaying toxic organisms, is covering hundreds of meters of the coastline. Authorities plan to reopen the beaches once conditions improve and the risks have been thoroughly assessed.