LUXEMBURG, Oct. 21 – Ukraine has achieved great success in the fulfillment of the conditions necessary for the signing of the Association Agreement with the European Union, but some of EU member states – the Netherlands, the United Kingdom, and Sweden – will not take a positive decision until Ukraine frees former Prime Minister Yulia Tymoshenko, Polish Foreign Minister Radoslaw Sikorski said.

"During these meetings [a meeting of the EU Group of Friends of Ukraine and a meeting of the EU Foreign Affairs Council] I had a serious feeling that there is a chance for success at the Eastern Partnership [Summit] in Vilnius [scheduled for November]. It seems that Ukraine has demonstrated great success while catching up with the implementation of reforms required by the EU. It's a big thing indeed," Sikorski said in Luxemburg on Monday.

He said that Ukraine's government, president, and opposition have managed to build cooperation.