The United States has deployed manned surveillance aircraft over Nigeria and is sharing satellite imagery with the Nigerian government to find more than 200 schoolgirls abducted by Islamist insurgents, a senior Obama administration official said on Monday.
Washington has sent military, law-enforcement and development experts to Nigeria to help search for the missing girls who were kidnapped by Boko Haram militants from a secondary school in Chibok in remote northeastern Nigeria on April 14.