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: Kiruna Municipality, Sweden
Image of the day: Arctic landscapes of Kiruna, SwedenNews

Image of the day: Arctic landscapes of Kiruna, Sweden

Nestled in Swedish Lapland, Kiruna is Sweden’s northernmost and largest municipality, stretching across vast Arctic terrain. Located about 200 kilometers north of the Arctic Circle,…
Muser NewsDeskMuser NewsDeskFebruary 15, 2025 Full article
Image: Swiss Alps, Switzerland
Image of the day: Glacial collapse devastates Swiss villageNews

Image of the day: Glacial collapse devastates Swiss village

A catastrophic glacial collapse in the Swiss Alps triggered a massive landslide on 28 May 2025, engulfing much of the village of Blatten in the…
Muser NewsDeskMuser NewsDeskMay 31, 2025 Full article
Image: large stone structure sitting on top of a lush green hillside -Sounion, Greece
Greece’s ancient sites get climate-change checkupNews

Greece’s ancient sites get climate-change checkup

Athens, Greece | AFP | Muser NewsDesk Worsening wildfires, soaring heatwaves and rising water levels have prompted Greek officials to take a closer look at protecting…
SourceSourceApril 13, 2026 Full article