Lagos, Nigeria (CNN) -- The mother of Nigeria's Finance Minister Ngozi Okonjo-Iweala has been released by her kidnappers, five days after she was seized from her home, Nigerian police said Friday.

CNN: Kidnappers free mother of Nigerian finance minister

Five days a week he commutes to Riverwoods from his home in Chicago by train and bus for 70 to 90 minutes each way.

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