(FILES) This file photo taken on June 21, 2017 shows Special counsel Robert Mueller leaves following a meeting with members of the US Senate Judiciary Committee at the US Capitol in Washington, DC. Mueller has impaneled a grand jury to investigate Russia's interference with the 2016 presidential election, The Wall Street Journal reported on August 3, 2017, -- an important step toward potential criminal charges. / AFP PHOTO / SAUL LOEB
Facebook Inc has given special counsel Robert Mueller extra details on political ad spending from a Russian group that tried to sow discord online ahead of last year’s US Presidential election, according to a person familiar with the matter.
The social network provided copies of ads and explained how they were targeted and who bought them, said the person, who asked not to be identified discussing an ongoing investigation. That surpassed the level of information Facebook told Congress last week. The Wall Street Journal earlier reported Facebook’s latest disclosures.
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