Prime Minister Scott Morrison has rallied the support of foreign leaders to push back against Facebook’s “bullying”, after the social media giant stunned the world by blacking out news for millions of Australians and also blocking access to hundreds of other non-media pages.

Many businesses, state government health authorities were among those suddenly unplugged by Facebook on Thursday, including the Royal Children’s Hospital, Peter Doherty Institute for Infection and Immunity, Dementia Australia, MS Australia, a Northern Territory Indigenous health service, Bowel Cancer Australia, The Kids’ Cancer Project, mental health and domestic violence services, the Bureau of Meteorology and the West Australian opposition leader fighting an election.