evidence: Nigeria's parliament is investigating reports that 97 fishermen have been killed in the Bakassi peninsula, which the country ceded to Cameroon. [...] Cameroon took control of oil-rich Bakassi in 2008 after an International Court of Justice ruling, ending years of border skirmishes. [...] • Cameroon based its claim of sovereignty on maps dating back to the colonial era • It was administered by Nigeria from independence in 1960 until 2008 • Nigeria and Cameroon nearly went to war over Bakassi in 1981 and bloody clashes claimed 34 lives in 1994 • In 2002, the International Court of Justice ruled in Cameroon's favour • 14 August 2006: Nigerian troops withdrew but the area remained under Nigerian administration • 14 August 2008: Nigeria fully ceded the territory to Cameroon • 15 August 2013: Cameroon took over full sovereignty and a tax-free exemption for residents came to an end