“Which one will be next?” Vincent said, according to VOA. “Which journalist will be taken in custody and accused of extravagant charges? It raises a lot of concerns for us, because it will be difficult for us to visit him. It will be difficult to get information.”

Diallo was arrested late Tuesday as he was trying to leave the country for three months to train in France, his family said, according to VOA. Police are accusing him of working for Radio France International, whose correspondent, Moussa Kaka, is also being detained on accusations of plotting with rebels against Niger's government. Should Kaka be found guilty, he faces life in prison.