MOSCOW — President Vladimir V. Putin of Russia called on the United States and Europe on Saturday to pressure the Ukrainian government to comply with a cease-fire accord, saying that Russia would do what it could to influence separatists in the eastern Ukrainian regions of Donetsk and Luhansk but held no sway in Kiev, the capital.

In an interview with Corriere della Sera, an Italian newspaper, before a scheduled visit to Italy, Mr. Putin blamed the failure to carry out the political components of the peace agreement on the government of President Petro O. Poroshenko. The accord was reached in February in Minsk, the capital of Belarus.

Mr. Putin’s suggestion that Russia does not control the authorities of the self-declared separatist republics in Donetsk and Luhansk contradicts Mr. Poroshenko and his Western allies, including the United States, Germany and France, who insist that the separatists are financed and directed by Russia.

Fighting flared last week in eastern Ukraine as frustration continued to build on all sides over the failure to secure a longer-term peace settlement.