London Police say British reporter Sean Hoare, who first revealed the News Of The World phone-hacking scandal, has been found dead. Britain's Press Association news agency reports police say the death is not considered suspicious.

The New York Times had quoted Hoare as saying phone-hacking was widely used and encouraged at the News of the World tabloid under then-editor Andy Coulson.

Coulson, who most recently served as Prime Minister David Cameron's communications chief, and another former editor, Rebekah Brooks, have been arrested as part of the investigation into phone hacking and police corruption.

London Police Commissioner Paul Stephenson and assistant John Yates have resigned because of the scandal.

News Corp owner Rupert Murdoch, his son James, and Brooks are to appear before Britain's parliament Tuesday to answer questions about the News Of The World scandal.

The Sunday paper shut down last week after allegations that reporters illegally accessed thousands of cellphone voice mails of celebrities, politicians, rival journalists and even murder victims.

Meanwhile, British Prime Minister David Cameron cut short an African trip to deal with the growing scandal. Parliament was to begin a six-week recess Tuesday, but Mr. Cameron has asked lawmakers to reconvene Wednesday for a special session.

In the United States, the FBI has begun a probe into whether employees of Murdoch's media conglomerate tried to hack into the phones of September 11 terrorist attack victims and their families or tried to bribe police for information.

Murdoch's company has several U.S. news and entertainment outlets, including the country's top business newspaper, The Wall Street Journal, and a major television outlet, Fox News Channel.