Alexander Zemlianichenko / AP A supporter of Prime Minister Viktor Yanukovych carrying portraits of Tsar Nicholas II and his wife during a march in Kiev on Saturday.

State Duma Speaker Boris Gryzlov said Saturday that the Ukrainian Supreme Court decision ordering a rerun of the presidential runoff was unlikely to solve the country's political crisis.

"The elections in Ukraine have shown that society in that country is split right down the middle, and the Supreme Court's decision in favor of the loser is unlikely to remedy everything and immediately," said Gryzlov, who represented Russia in the international mediation talks in Kiev.

"The presidential election has uncovered too many internal problems, and we are now dealing not with a settlement of the political crisis but with a search for ways to settle it," he said in St. Petersburg, Interfax reported.

Gryzlov spoke a day after the Duma accused the European Parliament and the Organization for Security and Cooperation in Europe of escalating the crisis. The European Parliament on Thursday backed opposition candidate Viktor Yushchenko's call for a new runoff.

Their "one-sided approach" could lead to "dangerous actions ... massive disturbances, chaos and a split," the Duma said in a statement. If the situation gets out of control, blame will lie with "the external forces that are exerting a destructive influence on events."