Pressure grows on Zuckerberg to attend Facebook committee hearing

Australia, Argentina and Ireland join UK and Canada in urging Facebook CEO to give evidence to parliaments

Parliamentary committees from five countries have called for Facebook's chief executive, Mark Zuckerberg, to appear in front of a joint hearing on online disinformation.

Committee chairs from Australia, Argentina and Ireland joined the call on Wednesday, following last week's joint request from the UK and Canadian governments. Between them, the five countries have an estimated 170 million Facebook users.