For some years the nationalist movement Flec (Front for the Liberation of the Enclave of Cabinda) has been trying to claim independence from the Angolan government.
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2.
An armed wing of a separatist group -- the Forces for Liberation of the State of Cabinda (FLEC) -- claimed responsibility for the attack and has threatened to strike again.
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3.
The head of Flec-Position Militar (Military Position), the faction which says it carried out the attack, told the BBC it was fighting what he called Angola's illegal occupation of Cabinda.
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