THE HAGUE, Netherlands (AP) — The widows of four activists executed 22 years ago in Nigeria are launching a civil action in the Netherlands, alleging complicity by oil giant Shell in their husbands' deaths, human rights organization Amnesty International said Thursday.

Amnesty said that Esther Kiobel is bringing the civil case at a court in The Hague along with Victoria Bera, Blessing Eawo and Charity Levula. The women are seeking a public apology and compensation.

Their husbands were among nine activists from the Ogoni tribe, led by writer Ken Saro-Wiwa, who were hanged in 1995 for the murder...