Award-winning reporter Jack Anderson, famed for his coverage of the NIXON presidency, has died. He was 83.

Anderson, who won the 1972 Pulitzer prize for his political exposes, had been suffering from Parkinson's disease. He passed away at his home in Maryland.

The intrepid journalist wrote the syndicated Washington Merry-Go-Round column for 34 years, breaking a host of US scandals.

During his time in the newsroom he was threatened by the Mafia and investigated by a string of government agencies desperate to trace the sources of his leaks.

Anderson was also behind the publication of secret transcripts of the Watergate grand jury.