
Cyrenaica's leaders say the region stretches from the central coastal city of Sirte to the Libyan-Egyptian border in the east - containing two-thirds of the country's oil reserves.
The three states enjoyed federal power following Libya's independence in 1951, until the country became a unitary state in 1963.
The people of Cyrenaica, known as Barqa in Arabic, long felt marginalised and neglected under Gaddafi, who focused much of the development on the west.
The city of Benghazi was the seat of the uprising that eventually toppled the former dictator.
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