The body, which advises the EU on human rights and political issues, decided Monday to hold an urgent debate on the standoff between factions backing the president and those supporting the prime minister which has gripped the ex-Soviet state since April 2.
Rene van der Linden said the organization was willing to mediate in the crisis between Viktor Yushchenko and his long-time rival Viktor Yanukovych if Kiev made a formal request.
The current crisis in the country triggered by the presidential order to disband parliament over the expansion of its majority coalition backing Yanukovych will be discussed in PACE Thursday.
Konstantin Kosachev, who leads the Russian delegation to PACE, said Monday the body was expected to pass a resolution and express its opinion on recent events in Ukraine, a transit nation for Russian energy supplies to Europe.
He also confirmed reports that Yanukovych would address a session in Strasbourg at noon local time Tuesday.
Van der Linden said earlier Monday he hoped a debate would help political leaders in Ukraine find a solution to the crisis simmering since August, when the former presidential hopeful returned as premier under a power-sharing deal.
He also said Foreign Minister Arseniy Yatsenyuk, the president's ally, had also requested the floor at the session and was free to attend.
Yushchenko will meet with the head of the European Commission, the EU's executive body, in Brussels Tuesday to brief him on the situation, chief commission spokesman Johannes Laitenberger said, adding the meeting had been requested by the Ukrainian leader.
Ukraine's parliament, which has continued work pending a Constitutional Court ruling on the presidential order, made a decision last week to ask for mediation. Yushchenko at his first news conference in two weeks Thursday said he did not rule out international assistance either.
The European Union mediated in Yushchenko's standoff with Yanukovych in 2004, when he defeated the Moscow-backed rival in a rerun of the allegedly rigged presidential poll.
Yanukovych backers with white and blue banners and Yushchenko's supporters clad in the pro-presidential parties' orange colors have been facing off in the capital, Kiev, the situation bringing back memories of the 2004 "orange revolution" mass protests.
