Jack Dorsey confirms four more Twitter executives to leave company

Jack Dorsey dismisses 'inaccurate press rumours' about sudden departure of four senior staff, promoting Adam Bain and Adam Messinger to fill the gaps

Twitter's chief executive responded to the sudden departure of four senior executives on Sunday by tweeting a detailed statement emphasising their contribution to the company as it moved from "near zero revenue to the over-$2bn run rate it is today".

Jack Dorsey confirmed that senior vice-president of engineering Alex Roetter, vice-president of global media Katie Jacobs Stanton, HR vice-president Skip Schipper and senior vice-president of product Kevin Weil are all leaving the embattled social media firm.