[JURIST] The US has warned Ukraine that it may take punitive actions if presidential elections in the country do not proceed freely on Sunday. In a statement released late Thursday, the US mission to the Organization for Security and Cooperation in Europe said, "If the election fails to meet international standards, a variety of measures to hold officials responsible for electoral misconduct accountable will be considered." Reports of widespread interference and irregularities have appeared in the run-up to the election, including government interference with protesters and opposition groups. OSCE has more on its Ukraine election mission. BBC News has more on the events in Ukraine. AP has more.