俄罗斯总理普京严厉批评美国，指责华盛顿挑动俄罗斯反对派。
普京星期四说，美国国务卿希拉里.克林顿的讲话给他的反对者“送去信号”。
克林顿星期二说，俄罗斯的议会选举既不自由也不公平，选举结果导致外界“严重担忧”。
反对派领导人一直关注着持续了三天的抗议活动中，以表示他们对选举的不满。国际观察员表示，星期天的投票被广泛指责存在伪造选票以及其他违规行为。
前苏联领导人戈尔巴乔夫呼吁取消俄罗斯议会选举的结果，并举行新的选举。他说，选举结果没有反映出人民的意愿。
星期三，5万名警察在直升飞机的支援下在莫斯科街头巡逻，进行武力震慑。警察逮捕了50名示威者。安全官员说，前一天晚上，有550人在莫斯科的抗议活动中被捕。
一个社交网站承诺要在每天晚上举行抗议，但是俄罗斯的国营电视频道没有提到抗议活动或是警力的增加。
Russian Prime Minister Vladimir Putin is lashing out at the United States, accusing Washington of riling up the opposition.
Mr. Putin said Thursday that remarks by U.S. Secretary of State Hillary Clinton "gave a signal" to his opponents.
Clinton said Tuesday that Russia's parliamentary elections were neither free nor fair, and that the results raised "serious concerns."
Opposition leaders have overseen three days of protests to express their frustration with the elections. International observers say Sunday's vote was marred by widespread allegations of ballot-box stuffing and other irregularities.
Former Soviet leader Mikhail Gorbachev has called for Russia's parliamentary election to be annulled and a new vote held. The 80-year-old said the results do not reflect the will of the people.
Fifty-thousand police officers backed by helicopters patrolled the streets of Moscow Wednesday - arresting 50 demonstrators - in a show of force. Security officials said 550 people had been arrested in Moscow protests the night before.
A social networking site is promising nightly protests, but Russia's state-run television channels have not mentioned the protests or the police buildup.