The last edition of the News of the World was published on Sunday, with a full-page apology for hacking mobile phones of hundreds of people, including Milly Dowler.

On Thursday, News International chairman James Murdoch, son of Rupert, announced the paper would be closing down in the wake of the latest revelations and in its final editorial the paper said: "Quite simply, we lost our way".

News International said James Murdoch had no knowledge of the e-mails that Harbottle & Lewis were asked to review.

The NoW doubled Sunday's print run to five million, with money from the sales being donated to four charities.

The National Federation of Retail Newsagents said sales figures from its members suggested an average increase in sales at midday of more than 30% compared with the total sales from last Sunday.

Meanwhile, Labour leader Ed Miliband said he would force a Commons vote to delay News Corporation's proposed takeover of the whole of BSkyB, until the investigation into the NoW was completed.

Former Deputy Assistant Commissioner of the Met Police Brian Paddick is among those who will meet political leaders about the hacking this week. He said he did not find the revelations about police payments that surprising.

"Newspapers go to extraordinary lengths to protect their informants, whether they are police officers or not.

"So it shouldn't be any surprise that although they had evidence police officers were being paid for information, that they actually filed that information away four years ago, and it is only because of the pressure over the phone hacking they've actually produced this evidence so that the police can investigate."