James Murdoch expected to provide evidence he did not mislead MPs

James Murdoch is expected to explain within the next 24 hours why he did not mislead a parliamentary select committee investigating phone hacking at the News of the World.

He has until Thursday to reply to a list of detailed questions asked by the Commons culture, media and sport select committee, following allegations by the former editor and former head of legal affairs of the now defunct News International tabloid that one of his statements was "mistaken".

The former News of the World editor, Colin Myler, and the paper's ex lawyer, Tom Crone, who alleged that Murdoch had misled the committee, will also be sending letters to MPs ahead of tomorrow's deadline for supplementary evidence.

The three letters, along with a fourth letter from the former overall head of legal affairs at News International, Jon Chapman, are expected to reopen the scandal over just who knew how widespread phone hacking was at the News of the World. "These letters are going to be dynamite," said one source with knowledge of proceedings.