(FLNKS) for independence began in 1985. The FLNKS (led by the late Jean-Marie Tjibaou, assassinated in 1989) advocated the creation of an independent state of "Kanaky". The troubles culminated in 1988 with a bloody hostage taking in Ouvéa. The unrest led to agreement on increased autonomy in the Matignon Accords of 1988 and the Nouméa Accord of 1998. This Accord describes the devolution process as "irreversible" and also provides for a local Caledonian citizenship, separate official symbols of Caledonian identity (such as a "national" flag), as well as mandating a referendum on the contentious issue of independence from the French Republic sometime after 2014.