Tributes were today paid to former Labour Party minister Justin Keating, whose death was announced.
The 79-year-old was first elected to the Dáil in 1969.
He served as Minister for Industry and Commerce between 1973 and 1977.
Labour Party leader Eamon Gilmore paid tribute to the former minister as an exceptionally able and talented individual.
“Justin Keating served at different times as a Labour Party member of the Dáil, the Seanad and the European Parliament.
“He was one of the new wave of TDs, first elected in 1969, who brought new life and vigour to Irish politics.
“On behalf of the Labour Party, I wish to extend my deepest sympathy to Justin’s family and friends.”
Fine Gael leader Enda Kenny described Mr Keating as “a man of deep principles who worked tirelessly".
Former Fine Gael Taoiseach John Bruton said he was saddened to hear of his death.
“I am very sad to hear the news of the death of Justin Keating," Mr Bruton said.
"As a broadcaster and a politician, he was a man of deep and sincere conviction, who took positions on the basis of careful deliberation.
“It was my privilege to serve as his Parliamentary Secretary from 1975 to 1977. He was a considerate and fair person to work for, and he was always willing to give a hearing to views other than his own.
“His work as minister for industry and commerce laid the foundation, in difficult times, for Ireland's subsequent modernisation through overseas investment.”
Mr Keating was a former lecturer in anatomy at University College Dublin’s veterinary college and was senior lecturer at Trinity College Dublin.
He also served as RTÉ’s head of agricultural programmes for two years.
The son of artist Sean Keating, he served as president of the Humanist Association of Ireland until his death.