Residents of South Australia were astonished by the sight of thousands of dead fish on one of the famous beaches in the state, after they were washed away by water.
Middleton Beach on Florio Island was covered with dead carp and a stench emanated from the distant streets.
Environmental experts attributed that what happened was a mass death or killing that could be due to several reasons, including the levels of salt, oxygen and temperature in the water.
The pollutants to which sea water is exposed are also a strong factor in this disaster.
The authorities launched an investigation into the second incident of its kind in a few weeks, and confirmed that swimming in the sea is not dangerous after these events.