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

Graphic news (s. climate, science, research, scientists. emission targets, floods, environment)
As toll crosses 100, Trump puts Hurricane Helene at election center stageNews

As toll crosses 100, Trump puts Hurricane Helene at election center stage

By John Falchetto | AFP Valdosta, United States - Donald Trump sought to turn a storm that killed more than 100 people and caused destructive…
SourceSourceOctober 1, 2024 Full article
Satellite image: Gulf of Bothnia, Finland
Image of the day: Navigating icy waters in the Gulf of BothniaNews

Image of the day: Navigating icy waters in the Gulf of Bothnia

This image, captured by one of the Copernicus Sentinel-2 satellites on 3 February 2025, shows shipping lanes cutting through the icy waters of the Gulf…
Muser NewsDeskMuser NewsDeskFebruary 17, 2025 Full article
Satellite Image: Honshu Island, Japan
Image of the day: Autumn foliage blankets Honshu IslandNews

Image of the day: Autumn foliage blankets Honshu Island

Every autumn, Japan’s landscapes are transformed as the kōyō season turns leaves from green to vibrant shades of red, orange, and brown. This annual change…
Muser NewsDeskMuser NewsDeskNovember 24, 2025 Full article