Up to 5,000 people have attended a military ceremony commemorating the 1916 Easter Rising at the GPO on O'Connell Street in Dublin.
The event was led by President Michael D Higgins, Taoiseach Enda Kenny and Minister for Justice, Equality and Defence Alan Shatter.
The ceremony involved prayers of remembrance, a reading of the Proclamation and the laying of a wreath by President Higgins.
The National Anthem was played and the flag was lowered to half-mast. A minute's silence was observed.
Around 170 members of the defence forces; from the army, navy and reserve forces took part in the ceremony.
The crowd applauded after the Proclamation was read out and the event concluded with a fly-past by the Air Corps.