The news that four phone hacking cases have been lodged at the High Court against Mirror Group Newspapers raises the troubling possibility that hacking went beyond News International.
It is important that allegations of phone hacking or other criminality in any news organisation are taken seriously.
Flitcroft told Leveson he was victim of 'dirt-digging'
Former Blackburn Rovers footballer, Garry Flitcroft, is one of four people who are taking legal action against Mirror Group Newspapers for alleged phone hacking.
In November, Flitcroft told the Leveson Inquiry that he had previously been hounded by tabloid media in 2001 over an extra-marital affair.
Trinity Mirror shares fall by 12% after hacking claims
As news emerged that four people have issued hacking claims against Mirror Group Newspapers, its owner Trinity Mirror's shares fell 12% today, reversing some of the recent strong gains for the stock.
Shares in the group were down 12 percent at 63 pence at 0725 GMT, according to Reuters.
Johnathan Barrett, an analyst at N+1 Singer, said:
The shares have been very strong and buoyed by an improved nationals advertising market and the likelihood of greater cost savings in 2013.
The claims will weigh on the shares, in part because many had assumed the subject was fading away as an issue.
No particulars of Mirror group hacking claims filed yet
Four people have issued High Court claims against the Daily and Sunday Mirror and The People.
The claims allege "breach of confidence and misuse of private information" relating to the "interception and/or misuse of mobile phone voicemail messages and/or the interception of telephone account".
The Financial Times reports that no particulars of the claims have been filed as yet.
The four claimants, represented by media lawyer Mark Lewis, who also represented other celebrities and claimants in action taken against News International, have four months to serve claims on Trinity Mirror, the newspaper said.
Trinity Mirror: 'We have no comment' on hacking claims
Four people - including former England football manager Sven-Goran Eriksson - are taking action against the publishers of the Daily Mirror over alleged phone hacking.
Trinity Mirror, which owns Mirror Group Newspaper, told the Financial Times (£):
We have no comment, we are unaware action has been taken at the High Court.
Lawyer for 'hacking victims': 'Allegations taken Mirror by surprise'
Mark Lewis, who is representing the four alleged victims of hacking by the Daily Mirror, has told Daybreak that he doesn't understand how the hacking allegations have taken the Mirror Group 'by surprise'.
Hacking allegations take Mirror Group 'by surprise'
Mark Lewis who represents the alleged victims of phone hacking told Daybreak the hacking allegations appeared to take the Mirror Group 'by surprise'.
There is evidence which is going to be put forward. This is the very start of a claim and allegations are going to be put forward... The Mirror Group might say they don't know but the allegations for example against Sven Goran Eriksson have been made public... There has always been a continual mantra [by the Mirror Group] by saying 'we always comply with criminal law and have always complied with the Press Complaints Commission code'. The courts will investigate the evidence.
Newspaper publisher Trinity Mirror is facing legal challenges over phone-hacking allegations for the first time, according to reports.
The allegations relate to newspapers in the Mirror Group Newspapers stable - the Daily Mirror, Sunday Mirror and The People.
The claims allege breach of confidence and misuse of private information relating to the interception and/or misuse of mobile phone voicemail messages and/or the interception of telephone accounts.