Sydney's popular Coogee beach has been closed until further notice after hundreds of strange black balls washed up on the shoreline. <br

An unusual situation has arisen in Australia. Mysterious black balls have been spotted on Coogee Beach in Sydney. It is not yet known how they ended up on the shore. Research will be necessary to determine their origin.

A local mayor says the balls littering two beaches in the Sydney area could be "tar balls," which form when spilled oil clumps together with debris in the water.

Mysterious, black, ball-shaped debris have now been found washed ashore at three beaches in Sydney’s east. Randwick Council asked the public to avoid Coogee Beach — and later Gordons Bay Beach — “until further notice” after council lifeguards first discovered the potentially toxic dark spheres along the length of the beach on Tuesday afternoon.

Mysterious spherical debris has washed up on shore at Coogee Beach in Sydney, leading to the beach’s temporary closure until the objects can be safely removed and tested.

Sydney beaches reopen days after hundreds of tar balls wash ashore - The origins of the tar balls is still unclear and under investigation