The leaders of opposition factions, Arseniy Yatseniuk (Batkivschyna), Vitali Klitschko (UDAR) and Oleh Tiahnybok (Svoboda) have left for the Eastern Partnership summit in Vilnius.

"They have already flown off," Batkivschyna's press service told Interfax-Ukraine in Kyiv on Wednesday.

A statement posted on the official Web site of the Batkivschyna Party notes that on November 28, Yatseniuk will attend a meeting with the Eastern Partnership leaders, which will be held by the European People's Party as part of preparation for the EU's Eastern Partnership summit.

On Friday, November 29, Yatseniuk will speak at a civil society conference "Eastern Partnership Reality Check" during a session "Ukraine as EU's (Non)-Associated Country: Possibilities and Challenges," which is held as part of Lithuania's presidency of the EU Council.

The leadership of the Batkivschyna Party is also planning to hold a number of meetings with European politicians.

The events in Vilnius will also be attended by the head of the Ukrainian parliament's committee on European integration, Hryhoriy Nemyria, and Yevhenia Tymoshenko, the daughter of former Ukrainian Prime Minister Yulia Tymoshenko.

According to the press service of the UDAR Party, Klitschko will meet with EU Commissioner for Enlargement and Neighborhood Policy Stefan Fule and speak at a session of the summit "The Ukrainian Course."

As reported, the leaders of three opposition factions intend to express their position in Vilnius, which is different from the position of the Ukrainian leadership, and plan to ask the EU "not to close the door for Ukraine."