Months after mysterious black balls forced the closure of some of Sydney's most famous beaches, small marble-like debris has ...

Months after mysterious black balls forced the closure of some of Sydney's most famous beaches, small marble-like debris has begun washing up on the city's shores again. The balls - this time grey ...

The marble-sized white and grey balls were tested and discovered to contain "saturated fatty acids, along with fecal ...

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Mysterious grey balls sparking the closure of nine popular beaches could have origins in sewerage and need to be treated with caution, an expert says.

An analysis of small grey balls that washed up on popular beaches in Sydney’s north has found the errant debris is largely ...

Nine Sydney beaches have been closed after the discovery of numerous marble-sized balls. The debris, said to be a combination of white and grey in colour, appeared along the shoreline in the city ...