The social network Facebook has restricted the New York Post publication’s placement about Hunter Biden, the son US presidential candidate Joe Biden, emphasizing the need for fact-checking, company representative Andy Stone said on the Twitter page.

“I will not intentionally link to the New York Post, but I want to make it clear that third-party Facebook partners should fact-check this publication. In the meantime, we are limiting its distribution on our platform,” Stone wrote.

The New York Post previously published an email correspondence between hunter Biden and Burisma management adviser Vadim Pozharsky, who in one letter thanks him for meeting with Joe Biden, and in the next asks him to think about how he can “use his influence” to help the company.

According to the newspaper, Joe Biden’s son Hunter introduced his father to the leadership of the Ukrainian energy company Burisma in 2015, during his tenure as Vice President of the United States. These revelations contradict Biden’s claims that he had nothing to do with his son’s work for Burisma.