The Papua New Guinea Prime Minister, Peter O'Neill, says Facebook has become a tool of disruption in some societies.
Mr O'Neill made the comment at the APEC meeting in Peru last week where he questioned the Facebook founder, Mark Zuckerberg, on what his company is doing to manage misinformation and messages of hate.
The National reports Mr O'Neill took Mr Zuckerberg to task on the way in which misleading and incorrect information on Facebook damages communities with no recourse to the truth.
Mr O'Neill said online platforms have a duty of care to protect communities from the harm inflicted by lies and malicious slander.
Mr Zuckerberg agreed he has a responsibility to combat the spread hate speech.
He said Facebook has seven options when handling misinformation including labelling stories that might be false.