Prime Minister Scott Morrison has pledged to work with tech giants and other countries to remove violent and extremist content from the internet.

Mr Morrison made the commitment at a leaders' dialogue on the sidelines of the United Nations General Assembly in New York, where it was announced that a global working group, set up by Facebook, Twitter, YouTube, and Microsoft to remove extremist content, will become an independent watchdog.

The Global Internet Forum to Counter Terrorism, created in 2017, has already shared about 200,000 digital fingerprints, enabling the major platforms to take down extremist content across multiple platforms.