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 ...

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 or ...

The discovery of the marble-sized balls comes just months after a similar incident in October of last year, where thousands of washed-up black balls led to the closure of Bondi Beach, among other ...

Nine beaches in Sydney were shut down for visitors on Tuesday after mysterious white and grey marble-sized balls ... were closed to visitors after small black balls washed up on the shore.

The discovery comes three months after Bondi and other beaches in Sydney's east were closed when 2000 black tar balls, which were ... most samples identified are marble-sized with a few larger ...

Nine Sydney beaches have been closed after the discovery of numerous marble-sized balls ... In October, hundreds of black balls resulted in the closure of a number of Sydney beaches, including ...