The Warri Crisis was a series of riots and clashes between the Ijaw and the Itsekiri (and to a lesser extent, Urhobo) ethnic groups centered on the city of Warri in Delta State, Nigeria between March and May, 1997.
While the Ijaw and the Itsekiri have lived alongside each other for centuries, for the most part harmoniously, the Itsekiri were first to make contact with European traders, as early as the 16th century, and they were more aggressive both in seeking Western education and in using the knowledge acquired to press their commercial advantages. Until the arrival of Sir George Goldie's National Africa Company (later renamed the Royal Niger Company) in 1879, Itsekiri chieftains monopolized trade with Europeans in the Western Niger region. Despite the loss of their monopoly, the advantages already held by the Itsekiri ensured that they continued to enjoy an advantaged position relative to that held by the Ijaw. The departure of the British upon independence did not lead to a decrease in tensions between the Ijaw and the Itsekiri. With the discovery of large oil reserves in the Niger Delta region in the early 1960s, a new bone of contention was introduced, as the ability to claim ownership of a given piece of land now promised to yield immense benefits in terms of jobs and infrastructural benefits to be provided by the oil companies. Despite this new factor, rivalry between the Ijaw and the Itsekiri did not actually escalate to the level of violent conflict between the two groups until the late 1990s, when the death of General Sani Abacha in 1998 led to a re-emergence of local politics.
The title one of the city's traditional ruler, the Olu of Warri, was formerly known as the Olu of Itsekiri. When the title was changed by Awolowo's Western Nigeria government from Olu of Itsekiri to Olu of Warri in 1952, members of the other tribes (Urhobos, Isokos and Ijaws) saw this as an attempt to impose an Itsekiri ruler over them. The title dispute has led to series of clashes between the tribes in Warri over sovereignty.