Google said it found that Russians and other operatives working in concert with them, spent thousands of dollars to spread fake news and misinformation using its platforms including YouTube, Google Search, Gmail and DoubleClick, its advertising network.
Russia's ad purchases on Google were first reported by the Washington Post.
Google did not comment on the report.
Russian Federation used Google to intervene in the U.S. presidential election in 2016, said the influential American newspaper the Washington Post, citing sources familiar with the results of an internal investigation.
To date, Google has mostly avoided the scrutiny that has fallen on its rival Facebook.
According to the report, the ads purchased on Google appear to be from a different source than the 3,000 ads purchased on Facebook by a Kremlin-linked "troll farm".More news: Matuidi keeps French World Cup destiny in own hands
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Other ads appear to have been aimed at fostering division in United States by promoting anti-immigrant sentiment and racial animosity.
Those ads focused on "amplifying divisive social and political messages across the ideological spectrum - touching on topics from LGBT matters to race issues to immigration to gun rights", Facebook's Chief Security Officer Alex Stamos said in a statement.
Facebook revealed last month that the company had found $100,000 in spending by the agency and has since pledged to become more transparent about their ad transactions.
Meanwhile, Twitter said that it shut down 201 accounts associated with the Internet Research Agency.
Google officials have been invited to testify publicly about Russian attempts to use their platforms to influence the election before both the House and Senate intelligence committees on November 1 alongside Facebook and Twitter.
The content of the ads that flowed through Google was not clear. Google reportedly uncovered its problem by searching through Twitter data.
It has been widely reported that Russian president Vladimir Putin, hoping that electing Donald Trump to the US presidency, would allow him to remove sanctions imposed on his administration by the Obama administration, helped the current president win the election.