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

Fire globe - abstract (s. climate, temperatures, forever chemicals, wildfires)
Spain on heat alert and ‘very high to extreme’ fire riskNews

Spain on heat alert and ‘very high to extreme’ fire risk

Madrid, Spain | AFP | Muser NewsDesk All of Spain was on heatwave alert on Friday, while the weather agency warned that much of the country…
SourceSourceAugust 15, 2025 Full article
Fire globe - abstract (s. climate, temperatures, forever chemicals, wildfires)
Wildfires spread to 15,000 hectares in Argentine PatagoniaNews

Wildfires spread to 15,000 hectares in Argentine Patagonia

Buenos Aires, Argentina | AFP Forest fires in southern Argentina have scorched more than 15,000 hectares (37,000 acres) this week, authorities said, though rain began falling…
SourceSourceJanuary 12, 2026 Full article
Image: Sunset over Etosha National Park, Namibia
Namibia deploys hundreds of soldiers to fight Etosha fireNews

Namibia deploys hundreds of soldiers to fight Etosha fire

Windhoek, Namibia | AFP Namibia began deploying hundreds of soldiers on Sunday to fight a fire that has burned through a third of the vast Etosha…
SourceSourceSeptember 28, 2025 Full article