More mystery balls wash up in south Sydney weeks after ‘fatbergs’ close eastern suburbs beaches

Greens claim EPA no closer to determining cause of debris after beachgoers advised not to enter Silver beach at Kurnell until clean-up complete

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Mysterious green, grey and black balls have washed up on a beach in Kurnell, in Sydney's south, with beachgoers warned to avoid the area.

Authorities said the ball-shaped debris" washed up along the eastern end of Silver beach on Tuesday.

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