Workers at a Canadian-run gold mine in northern Greece staged a counter-protest on Monday against its threatened closure, a day after scuffles broke out at a demonstration by activists opposed to the project. About 200 workers gathered at two sites in the scenic Halkidiki region, briefly blocking roads in protest at a government decision which Canadian Eldorado Gold said put all 2,000 jobs at the site at risk. The leftist government of Prime Minister Alexis Tsipras announced last Wednesday that it was halting the $1 billion project, saying the company had violated contractual terms.