More than 500 workers at Blacktown City Council in Sydney have stopped work and have begun to strike after union officials claimed they were told that if they refused to use weedkiller they would be forced out of their jobs.

More than 10,000 bins were left uncollected yesterday and workers are meeting this morning to decide whether to continue the strike. 

Last month the workers refused to continue using glyphosate sprays, including the leading Roundup brand which has been linked to cancer, and were threatened to use the product or face being forced into alternate jobs.