Facebook(BERLIN) — Ahead of Germany’s parliamentary election, Facebook has launched a filtering tool to tackle fake news stories on the social media site.

Facebook is partnering with Correctiv, a German investigative non-profit, that will serve as an external fact-checker, according to a statement from Facebook in German. Users in Germany will have the ability to flag news they believe to be fabricated by clicking on the upper right corner of a Facebook post.

“If the fact-finding organizations identify contributions as fraudulent, they are provided with a warning label that identifies them as untrustworthy,” Facebook said. “The warning contains a link to the relevant article as well as a justification for this decision. Messages classified as untrustworthy may also appear later in the newsfeed.”

Facebook was criticized in the U.S. election for being a platform that spread “fake news.” After the election, CEO Mark Zuckerberg said at the Techonomy conference it was “a pretty crazy idea” that “fake news on Facebook influenced the election in any way.”

Zuckerberg later clarified his remarks in a Facebook Live video and said “We don’t write the news that people read on the platform, but at the same time, we also know that we do a lot more than just distribute the news, and we’re an important part of the public discourse.”

In December, Facebook announced it was testing ways to address hoaxes and fake news on its platform. Germany is the first country outside the U.S. to use the new tools.

Ahead of the country’s election in the fall, German officials have warned users about misinformation on the internet, and German Justice Minister Heiko Maas called on Facebook to respect Germany’s defamation laws, according to BBC.

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