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: two hands touching each other in front of a blue background (AI)
Google greenhouse gas emissions grow as it powers AINews

Google greenhouse gas emissions grow as it powers AI

San Francisco, United States | AFP Google, despite its goal of achieving net-zero emissions, is pumping out more greenhouse gas than before as it powers…
SourceSourceJuly 3, 2024 Full article
Satellite Image: Trenčín, Slovakia
Image of the day: Trenčín marks its year as European Capital of Culture 2026News

Image of the day: Trenčín marks its year as European Capital of Culture 2026

Trenčín begins 2026 carrying the title of European Capital of Culture, a role it shares this year with Oulu in Finland. For twelve months, the…
Muser NewsDeskMuser NewsDeskFebruary 13, 2026 Full article
Graphic news (s. climate, science, research, scientists. emission targets, floods, environment)
Latest Spain heatwave was ‘most intense on record’News

Latest Spain heatwave was ‘most intense on record’

Madrid, Spain | AFP A 16-day heatwave Spain suffered this month was "the most intense on record", the country's State Meteorological Agency (AEMET) said on Sunday.…
SourceSourceAugust 24, 2025 Full article