The cancellation of Ukrainian President Viktor Yanukovych's visit to Moscow is connected to the unwillingness of the Ukrainian leadership to join the Customs Union, according to political analysts.

"What happened (the cancelation of Yanukovych's visit) is purely Ukrainian politics, specifics of our special relationship with Russia," Director of the Penta Center for Applied Political Studies Volodymyr Fesenko has said.

According to him, it is absolutely clear that there were draft documents prepared to be signed, otherwise there would be no plans of Yanukovych's visit.

"But at the last minute the visit was cancelled," the expert said, noting that according to various media, an agreement on Ukraine's accession to the EurAsEC, which is "a kind of lobby to the Customs Union," was planned to be signed.

Fesenko noted that Ukraine's joining the Customs Union at once was impossible and it should have been preceded by several procedures, including at the legislative level.

"I think that they demanded we make a political statement that we are moving towards the Customs Union," Fesenko said.

He believes that Yanukovych and the Ukrainian government are still "not ready for what Russia wants from us."

The expert noted that the best option for Ukraine would be partial integration into the East and into the West.

He noted that the partial integration, with the EU accounting for one third of Ukraine's trade and the countries of the Customs Union for 35% of the trade, would be an ideal option for Ukraine, but Russia is not happy with this option and it puts the question bluntly: the Customs Union - or the EU.

An independent expert on energy issues, Oleksandr Narbut, in turn said that Yanukovych's visit to Russia had not taken place because the Ukrainian government hadn't made a definite choice in favor of the Customs Union.

Director of the Situations Modeling Agency Vitaliy Bala, in his turn, said that for Ukraine's accession to the EU, the parliament should ratify relevant documents and he expressed doubts about the parliament's readiness to make such decisions.

"Objectively, there is no reason to do this in the current parliament," the expert said.