acebook has said an estimated 10 million people saw the controversial "divisive" adverts created by a shadowy Russian agency, which are part of an investigation into influence during the US election.
The social network has admitted millions of its users could have seen the 3,000 adverts, as it handed them to the US Congressional investigators looking into Russian interference in the presidential election.
"The 2016 US election was the first where evidence has been widely reported that foreign actors sought to exploit the internet to influence voter behaviour," said Schrage.
At a glance | Russian influence on the US Presidential election
In January 2017 the US Intelligence Community* published a declassified report on its investigation into Russian activities during the 2016 national election.
Vladimir Putin authorised Russian agencies to influence the US election result