Sydney, Australia (AFP) – Hundreds of mysterious black tar-like balls have washed up on two popular Sydney beaches, prompting lifeguards to close the strands to swimmers.

“Mysterious, black, ball-shaped debris” began appearing on Coogee Beach on Tuesday afternoon the local mayor said, leaving flummoxed Australian authorities scrambling to find out what they might be, and where they may have come from.

Hundreds of golf-to-cricket-ball-sized spheres could be seen littering the coast, which is usually thronged with Sydneysiders and tourists.

Instead, a few seagulls wandered among the spheres, pecking and examining.

The balls were also spotted at nearby Gordon’s Bay, an aquatic reserve popular for snorkelling and fishing, which was also closed.

“At this stage, it is unknown what the material is,” Mayor Dylan Parker said in a social media post.

“However, they may be ‘tar balls’ which are formed when oil comes in to contact with debris and water, typically the result of oil spills or seepage.”

arb/ssy

© Agence France-Presse

Featured image credit: kjpargeter | Freepik

Hairy pig with pink snout (s sow mortality)
Denmark to introduce world’s first livestock carbon taxNews

Denmark to introduce world’s first livestock carbon tax

Copenhagen, Denmark | AFP Denmark will introduce the world's first carbon tax on livestock, a unique measure designed to bring the Scandinavian country closer to…
SourceSourceJuly 10, 2024 Full article
Image: Boat Near Hubbard Glacier in Alaska, USA
Scientists unite to save the Earth’s glaciersNews

Scientists unite to save the Earth’s glaciers

Glacial ice stores 70% of Earth’s freshwater, underpinning the food and water security of billions of people. But ice is at the frontline of the…
SourceSourceMarch 19, 2025 Full article
Gray whales shrinking fast as climate warmsClimateNews

Gray whales shrinking fast as climate warms

By Issam AHMED | AFP Washington, United States - Pacific coast gray whales have shrunk in length an astonishing 13 percent since 2000, adding to…
SourceSourceJune 13, 2024 Full article