KIEV — International observers delivered scathing criticism Monday of Ukraine’s parliamentary election, saying the vote was heavily tilted in favor of President Viktor F. Yanukovych’s Party of Regions through the abuse of government resources, the dominance of media coverage, and the jailing of two prominent opposition leaders.

“Considering the abuse of power, and the excessive role of money in this election, democratic progress appears to have reversed in Ukraine,’’ said Walburga Habsburg Douglas, a Swedish lawmaker who led an observer mission for the Organization for Security and Cooperation in Europe’s Parliamentary Assembly.