A man carrying a flag for the militant group Boko Haram walks past a group of 82 Chibok girls, who were held captive for three years by the militants, as the girls wait to be released in exchange for several militant commanders, near Kumshe, Nigeria on May 6, 2017. Nigeria's domestic intelligence agency has detained journalist Tony Ezimakor fin relation to an article he wrote about the release of the Nigerian schoolgirls, according to media reports. (Reuters/Zanah Mustapha)
A man carrying a flag for the militant group Boko Haram walks past a group of 82 Chibok girls, who were held captive for three years by the militants, as the girls wait to be released in exchange for several militant commanders, near Kumshe, Nigeria on May 6, 2017. Nigeria's domestic intelligence agency has detained journalist Tony Ezimakor fin relation to an article he wrote about the release of the Nigerian schoolgirls, according to media reports. (Reuters/Zanah Mustapha)

Nigeria’s intelligence agency detains journalist to force him to reveal sources