Bishop Julius Agbortoko has been kidnapped by separatists in the south-west of the country. Church officials say he has been abducted by a group of young men who demand a ransom.
Armed rebels have frequently kidnapped people including religious leaders since the separatist conflict began four years ago.
Anglophone rebels complain of being marginalized by the government and fight for independence.
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The conflict has led to the deaths of thousands and has forced more than seven hundred thousand people to flee their homes, according to the UN,