Just weeks before the U.S. presidential election, TikTok approved advertisements that contained election disinformation even though it has a ban on political ads, according to a report published Thursday by the nonprofit Global Witness.

TikTok and Facebook approved advertisements containing blatant US election falsehoods just weeks ahead of the vote, a watchdog investigation revealed Thursday, calling into question the tech platforms' policies to detect harmful disinformation.

A Global Witness report reveals TikTok approved disinformation in political ads, despite its ban on such content ahead of the U.S. elections.

TikTok approved four out of eight advertisements containing false election claims submitted by advocacy organization Global Witness as part of a test of tech platforms’ ad systems in the critical final stages of the U.S. presidential election.