This is one of the Russian Facebook ads intended to stir dissension in the U.S. (Photo: Facebook).
While some ads focused on topics as banal as business promotion or Pokémon, the company consistently promoted ads designed to inflame race-related tensions.
Of the roughly 3,500 ads published this week, more than half — about 1,950 — made express references to race.
At least 25% of the ads centered on issues involving crime and policing, often with a racial connotation.
Separate ads, launched simultaneously, would stoke suspicion about how police treat black people in one ad, while another encouraged support for pro-police groups.
Only about 100 of the ads overtly mentioned support for Donald Trump or opposition to Hillary Clinton.
More: Thousands of Facebook ads bought by Russians to fool U.S. voters released by Congress. »