James Murdoch is expected to be recalled to give evidence to MPs in September to answer questions about whether he knew that phone hacking was not confined to one rogue reporter at the News of the World.
The culture, media and sport select committee will write to Murdoch, chairman of News International, and three of his former employees to ask about previous evidence they gave regarding hacking.
That trio – Colin Myler, Tom Crone and Jon Chapman – have all made recent statements questioning Murdoch’s insistence that he was unaware of any claims that the practice was carried out by more than one solo reporter.
Tom Watson, the Labour backbencher who sits on the committee, had wanted to recall Murdoch immediately. But the MPs agreed to send further letters to the individuals asking for more detailed answers.