Social media platforms Twitter Inc and Facebook Inc has outlined plans for placing warning labels on posts from U.S. election candidates and campaigns that claim victory in advance of official results. The moves come as social media platforms brace for what has been an unusual election cycle due to a high number of mail-in ballots that may cause a delay in final results.

Starting on election night through the inauguration, Twitter said it would place warning labels like “official sources called this election differently”, or “official sources may not have called the race when this was tweeted”.

Facebook Inc said in a separate statement that it will add specific information in news feed notifications in its apps and in the labels on posts if a candidate or a party declares premature victory, and will continue to show the latest results in its Voting Information Center. Facebook will also monitor a range of issues in real-time on Election Day, including reports of voter suppression content, and will remove any attempts to suppress participation or intimidate voters.

Facebook said another statement that "Once President Trump began making premature claims of victory, we started running notifications on Facebook and Instagram that votes are still being counted and a winner is not projected."

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