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

Image: woman playing with a kid in a sunny day (s. Lifestyle Test app)
Lifestyle app empowering people to reduce environmental impact launches EU-wide versionNews

Lifestyle app empowering people to reduce environmental impact launches EU-wide version

After the successful uptake of 200,000 tests across eight European countries, the PS Lifestyle Test - which helps people measure their environmental impact and adopt…
SourceSourceMay 30, 2024 Full article
Image: Floods in Southeast Aceh Regency caused by heavy rainfall ( 23 November 2025, Sumatra, Indonesia)
Indonesia floods force deforestation debate after deadly disasterNews

Indonesia floods force deforestation debate after deadly disaster

Permit revocations after the disaster Ongoing risks during the rainy season Indonesia floods have reignited a national debate over deforestation after extreme rainfall and landslides…
Muser NewsDeskMuser NewsDeskFebruary 19, 2026 Full article
Satellite Imagery: Châlons-en-Champagne, France
Image of the day: Soil dries out in northern FranceNews

Image of the day: Soil dries out in northern France

As Europe endures a severe heatwave with temperatures topping 40 °C across several countries, northern France is showing signs of growing drought stress. These satellite images,…
Muser NewsDeskMuser NewsDeskJuly 3, 2025 Full article