Mystery debris that closed Sydney's Coogee beach confirmed to be thousands of 'tar balls'

Coogee and Gordons Bay beachgoers had been warned not to touch the material. 'Tar balls' form from oil spills or seepage at seaFollow our Australia news live blog for latest updatesGet our breaking news email, free app or daily news podcastThousands of black golf ball-sized pieces of debris that washed up on the sand and forced the closure of two Sydney beaches have been confirmed as "tar balls".Coogee beach was closed on Tuesday and Gordons Bay beach was closed on Wednesday with beachgoers warned not to touch or go near the "mysterious black, ball-shaped debris".Sign up for Guardian Australia's breaking news email Continue reading...