Papua New Guinea has blocked access to Facebook in what authorities call a “test” to limit hate speech, misinformation and pornography.

The sudden ban, which started on Monday, has drawn criticism from opposition MPs and political critics, who called it a violation of human rights.

Defending the move, Police Minister Peter Tsiamalili Jr said the government is not trying to suppress free speech, but that it has the “responsibility to protect citizens from harmful content”. 

Facebook is the most popular social media platform in Papua New Guinea, with an estimated 1.3 million users – including many small businesses that rely on it for sales.