ABUJA (Reuters) - Nigeria's military has rescued all state oil firm staff kidnapped by suspected Boko Haram militants, it said in a statement on Wednesday.
The corpses of nine soldiers and a civilian were also recovered, the military said.
Earlier on Wednesday, the Nigerian National Petroleum Corporation (NNPC) said suspected members of the Islamist insurgency had kidnapped 10 members of a university research team the firm had contracted to prospect for oil in Nigeria's northeast.
NNPC did not immediately respond to calls for comment.
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(Reporting by Paul Carsten; Editing by Robin Pomeroy)