WASHINGTON: Facebook placed an informational disclaimer Tuesday on a post from President Donald Trump claiming mail-in voting would lead to a "corrupt" election.

The move, without removing the post, appears to follow through on the social network giant's pledge to step up efforts to fight misinformation, including from world leaders, shifting slightly from its hands-off policy on political speech.

Trump wrote on his page that mail-in voting, unless changed by the courts, "will lead to the most CORRUPT ELECTION in our Nation's History!" and added the hashtag #RIGGEDELECTION.