The Irish Times reported that Fisk was admitted to St Vincent’s Hospital in Dublin after falling ill at his home on Friday, and died shortly afterwards.
Fisk won numerous awards for his coverage of the Middle East, where he reported from the 1970s, but he also created controversy for his sharp criticism of the US and Israel and of Western foreign policy.
Covering wars in the Balkans, Middle East and North Africa for UK newspapers over five decades, the New York Times described him as “probably the most famous foreign correspondent in Britain” in 2005.
Born in Maidstone, Kent in 1946, he later took Irish citizenship and had a home in Dalkey outside the capital Dublin.
Irish President Michael D Higgins expressed his “great sadness” about Fisk’s death on Sunday.
“With his passing the world of journalism and informed commentary on the Middle East has lost one of its finest commentators,” he said in a statement.
Robert Fisk was fearless in a time of cowardice. His reporting from the Middle East brought the Wests bloodthirsty foreign policy into the homes of millions.
He refused to be censored by Murdoch and always pointed out the injustice of the Palestinian occupation.
The Great War for Civilisation – The Conquest of the Middle East is one of the greatest books ever written that explores the immorality of America’s foreign policy platform.
He refused to write from an office, he was always at the front of the conflict sending reports back.
We won’t see another journalist with his courage or intelligence for a long time.
Personally, Fisk was one of the most influential journalists of my life.
His passing is a terrible tragedy for journalism and for our understanding of how damaged our planet has become because of American foreign policy.