Brazilian President Luiz Inacio Lula da Silva said on Thursday that social media company Meta's decision to scrap its fact-checking program in the U.S. was "extremely serious," and that he would discuss the matter in a meeting with government officials.

President Lula said he will convene a meeting to discuss the new rules introduced by the multinational Meta, regarding the operation of these social networks.

Brazil on Friday gave social media giant Meta 72 hours to explain its fact-checking policy for the country, and how it plans to protect "fundamental rights" on its platforms. - 'Respect Brazilian legislation' - The extrajudicial notice asks for clarity on how social media algorithms will be designed "in order to unwaveringly promote and protect fundamental rights.