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

Satellite Image: Hurricane Melissa, Caribbean Sea
Image of the day: The Eye of Hurricane Melissa South of JamaicaNews

Image of the day: The Eye of Hurricane Melissa South of Jamaica

Hurricane Melissa, the strongest storm on the planet in 2025, rapidly intensified in the central Atlantic before sweeping across the Caribbean. The hurricane reached rare…
Muser NewsDeskMuser NewsDeskOctober 27, 2025 Full article
Image: Yellow flag pinned in Brazil map
Trees, targets and trillions: what’s on the agenda at COP30?Facts

Trees, targets and trillions: what’s on the agenda at COP30?

Paris, France | AFP This year's United Nations climate summit promises to be symbolic, marking a decade since the Paris Agreement and taking place in the…
SourceSourceNovember 4, 2025 Full article
Image: Beautiful forest in autumn
Policy realities on the ground: ForestPaths observes the effects of current legislation on Europe’s forestsNews

Policy realities on the ground: ForestPaths observes the effects of current legislation on Europe’s forests

To support its objective of advancing forest management practices in Europe with a focus on climate and biodiversity, the EU-funded ForestPaths project has published a…
SourceSourceNovember 1, 2024 Full article