BBC News has made four senior appointments as part of a restructure designed to put emphasis on digital journalism and to strengthen its current affairs programming.

Mary Hockaday has been appointed controller, BBC World Service English, the corporation's largest radio network. In this role, Hockaday will act as editor and ambassador. She is currently the BBC's head of the newsroom.

Gavin Allen, currently news editor, will take up the role of controller, Daily News Programmes department. He will be responsible for managing the teams which produce the BBC's flagship news programming on television and radio.

Jon Zilkha is to become controller, 24/7 and Digital News, the department which brings live and digital news services together. He will oversee the BBC News Channel and BBC World News, digital services including the website, and Newsbeat. Zilkha is currently editor of the BBC Business and Economics Unit.

Fiona Campbell, acting head of documentaries and features at BBC Three, has been appointed as head of current affairs. She will work across strands including Newsnight and Panorama.