Meta allowed a Moldovan oligarch, sanctioned by the US, to run paid Facebook ads, per AP.
Meta removed the ads, but only after they reached an audience of millions.
The paid Facebook ads featured oligarch Ilan Shor, who now lives in Israel after being convicted of massive financial fraud.
In one ad, Shor, who heads the pro-Russia Shor Party, can be heard accusing Sandu's government of corruption.
Moldova was rocked by mass protests late last year, which were organized by the Shor Party, the largest of which took place shortly after the ads were placed.