It has also just started as a new highlight in four nations that will publish alternative story links below questionable articles.
But some experts said the tests did not do go far sufficient.
“Presenting readers with the connection is helpful,” said Tom Felle, a senior speaker in digital journalism at City University.
“But it does nothing to prevent the spread of this matter, or to stop traffic moving to fake news peddlers who are getting money out of producing this material.”
Facebook has remained scrutinized for being one of the main delivery points for fake news, which many think led the 2016 US presidential election.
Voters were also overwhelmed with hoax articles during the French presidential election in May.
The firm has earlier been hesitant to take down probably fake news stories, arguing that it does not want to be an “arbiter of truth”.
Instead, it recognizes potentially false articles through a mixture of artificial intelligence (AI) and user discovery. These are then sent to free fact-checkers who place a flag next to hoax stories to alert readers.
On Thursday, although, the company said it would start using “updated machine learning” to improve detection.
“If a news has been examined by fact checkers, we may give the fact-checking stories below the original post,” added Sara Su, product manager of News Feed, in a Website.
A spokesperson later explained that these articles would not be “direct answers” to fake articles, but factually correct reports that suggested an alternative.
On Thursday, the firm worked out a new “Related articles” feature in the US, France, Germany and the Netherlands.
The article, which the company has been experimenting since April, places connections to other news coverage beneath highly successful or questionable articles, offering users “more views and additional information”.
Brooke Binkowski, the leading editor of fact-checking magazine Snopes, told the BBC: “I praise their efforts to ‘flood out’ fake news, a way of which I have been a protector for a long time.”
Take your time to comment on this article.