Mark Zuckerberg called Donald Trump after the Facebook director decided to leave a controversial message from the US president online. Zuckerberg told his company employees on Tuesday, The New York Times reports .

In the Facebook post, Trump responded to out-of-control demonstrations against the death of an unarmed black man by a white police officer in Minneapolis. "When the looting starts, the shooting begins," the US President wrote.

Zuckerberg wrote on his personal Facebook page on Friday that the message would remain. Facebook therefore has a different policy than competitor Twitter. There, the US President posted exactly the same message. Twitter decided to shield the message for violating the platform's rules.

In the telephone conversation with the President of the United States, Zuckerberg said that the message was personally "inflammatory and harmful," The New York Times quotes him. Despite this, Zuckerberg informed Trump that his message did not go against the guidelines of his social medium.

Facebook's policy leads to dissatisfaction among human rights organizations and its own employees. Zuckerberg has announced that the policy may be changed. If that actually happens, it could take weeks.