BRUSSELS--The European Union said Friday that it plans to hold an extraordinary meeting late next month over a growing tainted egg scandal as it revealed that products contaminated with an insecticide have now spread to 17 countries. The scandal has caused major political fallout, with neighbours Belgium, the Netherlands and Germany squabbling over who is to blame, and who knew what and when. Poultry farmers have been hardest hit, and are blaming the chemical industry for compromising their business and exposing consumers to danger. The EU's executive Commission said Friday that contaminated eggs have been found at producers in four countries; Belgium, France, Germany and the Netherlands. Eggs or egg products from those producers have reached Austria, Britain, Denmark, Ireland, Italy, Luxembourg, Poland, Romania, Slovenia, Slovakia and Sweden, as well as Switzerland and Hong Kong outside the EU.