New Zealand and France will lead efforts to stop the use of social media to organise and promote terrorism in the wake of the Christchurch attacks.A gunman killed 50 people in an attack on two mosques in March, while live-streaming the massacre on Facebook.
Prime Minister Jacinda Ardern said she would co-chair a meeting with French President Emmanuel Macron on 15 May.
The aim is to get countries and tech firms to agree to a pledge to eliminate terrorist content online.
The meeting will be held in Paris alongside the "Tech for Humanity" meeting of G7 digital ministers, which France chairs.
Tech companies faced severe criticism following the Christchurch attacks after live-streamed footage of the attack was widely shared on social media.
It is the latest incident to shine a spotlight on how sites like Facebook, Twitter, and YouTube struggle to address extremism on their platforms.