Fianna Fáil leader Micheál Martin has expressed his sympathies following the death of Paddy Duffy, a former Government Special Advisor and former Fianna Fáil Chef de Cabinet.
Mr Martin described Mr Duffy as "a Fianna Fáil man to his core" and said he will be missed by all who knew him in the party in north Dublin and throughout Ireland.
He added: "Paddy was an incredibly affable and creative person who put his heart and soul into whatever role he had.
"As Chef de Cabinet to Bertie Ahern, while Leader of the Opposition between 1994 and 1997, Paddy assembled a determined, hardworking and creative team that ultimately led Fianna Fáil back into government in 1997.
"Subsequently, as Special Advisor and Speech Writer to the Taoiseach, Paddy served his country and his party with distinction.
"In the late 1990s, Paddy was a driving force behind the Irish Government’s ‘Asia Strategy’ which sought to open up new markets for Irish business in emerging Asian markets."