Vladimir Putin had won Russia's presidential election by about 64 percent of the votes, the Russian Central Election Commission made the official announcement on?Monday.

CEC Chairman Vladimir Churov announced the preliminary result of the election after 99.30 percent of the ballots were counted early on Monday.

"According to preliminary results, Vladimir Putin was elected president of the Russian Federation with 63.75 percent of the vote," Churov said.

"As you see, the election was held in one round," he added.

Churov added that Communist leader Gennady Zyuganov won 17.19 percent of the votes and independent candidate Mikhail Prokhorov came in third with 7.82 percent.

About 6.23 percent of the votes went to Liberal Democratic Party leader Vladimir Zhirinovsky, and 3.85 percent to A Just Russia leader Sergei Mironov.

Churov said final results would be released within 10 days of polling day, adding that the margin of error between the preliminary results and the final ones would be less than 0.1 percent.

The chairman also confirmed that the voter's turnout stood at 65.3 percent, slightly lower than the 69.7 percent in the 2008 election, but higher than the 64.3 percent in 2004.

Putin already announced his victory on Sunday night.

"We have won!" Putin told his supporters with tears in his eyes. "We won thanks to the support from the vast majority of our voters."

He said it was "a pure victory," which was gained in an "open and honest battle," and calling on all Russians to unite around the interests of the people and the country.

"This was a test of (our) political maturity and independence. We have shown that no one can bestow anything upon us," Putin was quoted by RIA Novosti news agency as saying.

Medvedev told the crowd, "Our candidate is leading confidently, and I have no doubts that we will win. All of us really need this victory."

Putin's spokesman Dmitry Peskov told media that Putin was ready for talks with members of the opposition.

Putin's rivals Zhirinovsky and Mironov have called Putin to congratulate him on the victory.

However, there were widespread allegations of fraud in Sunday's election, which meant that Putin's return to the Kremlin might not be very smooth.

Putin's another two opponents Zyuganov and Prokhorov both claimed that the election was unfair.

And (Xinhua News Agency contributed to the story)