LONDON -?A British lawmaker says James Murdoch could be asked to clarify his testimony to a parliamentary committee investigating phone hacking after two former employees challenged his claim he had not seen evidence suggesting eavesdropping went beyond a jailed rogue reporter.

Murdoch's former legal adviser and an ex-editor say they told Murdoch years ago about an email that suggested the rot at the News of the World was more widespread than previously claimed.

News International said James Murdoch stood by his statement.

Conservative legislator James Whittingdale, who heads the committee, said Friday that Murdoch could be asked to address the contradiction in writing - but he would not be recalled before the committee.

James and Rupert Murdoch gave evidence on Tuesday.