Events are being held across the world today to mark the tenth anniversary of the execution by the Nigerian government of Ken Saro-Wiwa along with eight associates in 1995.
Mr Saro-Wiwa, founder of the Movement for the Survival of the Ogoni People, and his associates were executed on the orders of the late Gen Sani Abacha, despite pleas for clemency after a murder trial widely denounced as flawed.
They had protested against environmental devastation and the activities of the Royal Dutch Shell group in the oil fields of the Niger Delta.
Many events are being held in various parts of Ireland and worldwide to honour the men. A peaceful vigil will be held outside Shell/Corrib offices on Leeson Street, Dublin at lunch time today.
The Shell to Sea campaign group has organised a day of activities in Rossport, Co Mayo, on Saturday in memory of Saro-Wiwa and his friends. A mural of the men is being painted by local artists.
The mural will be blessed by African ministers and local clergy, and it will be unveiled by African and local children at Healy's Hall in Glenamoy.
Elsewhere, Wole Soyinka, Ken Wiwa and directors and representatives of Amnesty, Greenpeace and Friends of the Earth, among others, will speak on the significance of Ken Saro-Wiwa to their lives and work at a ceremony in London this evening.