A group of victims of press intrusion have alled for Prime Minister David Cameron to “clearly and speedily” reject the press industry’s self-regulation scheme and move on with the cross-party Royal Charter.

The move comes as Cameron appears today before the House of Commons Liaison Committee to answer questions about reform of the Civil Service and the progress of the Royal Charter.

The letter from campaign group Hacked Off, signed by 16 victims of press intrusion, said: "We are dismayed by the attitude of the leaders of much of the press industry.