The government said in a statement that it had issued an order requiring Facebook "to publish a correction notice" on a November 23 post which contained accusations about the arrest of a supposed whistleblower and election rigging.
Facebook said on Saturday that a corrective label had been issued on a user's post as requested by the city-state's government, but added that a balanced approach should be taken to a new "fake news" law, which covers statements that are communicated in the city even if they are published overseas.
Facebook is no stranger to blocking content that violates local laws, but this is the first time it's been ordered to post a correction under such a law.
One supporter of the government order against the States Times and Facebook wrote: "This is perhaps the most elegant approach to combating fake news".
It also contains a link to the government's own fact-checking website. According to Tan, the election would be an all-out card and a whistleblower would have been arrested.
"As required by Singapore law, Facebook applied a label to these publications, which the Singapore government determined to contain false information", a Facebook spokesman said in a statement.
While the company apparently has concerns about issuing government-mandated corrections, Facebook has long maintained that as a "publisher" it has the right to censor and block undesirable speech.
"As are the first days of the law's entry into force, we hope that the Singapore government's assurances that they will not impact freedom of expression will lead to a measured and transparent implementation approach".
The Singapore authorities ordered Facebook to correct an article on a new news site on Friday with & # 39; creepy allegations & # 39; of election attacks, which increased their use of a controversial law against misinformation.
Bowyer - a naturalised Singapore citizen originally from Britain - immediately complied.
Facebook, a major investor in Singapore that previous year announced plans to build a $1bn data centre there, has its Asia headquarters in the city-state.
The Singapore government, which regularly faces criticism for curbing civil liberties, insists that legislation is necessary to stop the spread of harmful falsehoods online.