David Cameron has condemned the alleged hacking of Milly Dowler's phone by the News of the World as "truly dreadful".
The scandal took another twist yesterday when it was revealed that messages had been deleted from Milly Dowler's voicemail in 2002 by private investigators working for the News of the World.
This occurred shortly after her disappearance in March 2002, giving her family false hope and destroying potential evidence.
News International, the Rupert Murdoch-owned parent company of the newspaper, has expressed "concern" at the development.
Pressure is likely to increase on current chief executive Rebekah Brooks, who was editor of the newspaper in 2002, and her then deputy Andy Coulson, who has since acted as director of communications at No 10 before being forced to step down amidst the scandal.
Ed Miliband, Labour leader, calls for Rebekah Brooks, former News of the World editor and current News International chief executive, to consider her position following the new phone hacking revelations.
Paul Connew, a former deputy editor of the News of the World, tells Radio 4's Today programme that the focus should be on who was in charge of Glenn Mulcaire, the private investigator at the heart of the scandal.
John Whittingdale, the chairman of the culture, media and sport select committee, tells BBC Radio 4's Today programme to beware tainting all of News Corporation despite their ownership of News International and thus the News of the World.