Photos:: Nigerian school kidnapping

Schoolgirls who escaped from Boko Haram militants receive information from Nigerian officials.  (AFP/Getty Images)

Women attend a demonstration in Lagos, Nigeria, calling on the government to rescue schoolgirls kidnapped by the radical Islamist group Boko Haram.

A Nigerian security officer speaks to protesters in Abuja. Demonstrators have been pressing the government to do more to find the 270 schoolgirls abducted in April by Islamist militants.  (Pius Utomi Ekpei / AFP/Getty Images)

Demonstrators gather May 6 outside the Nigerian Embassy in Washington demanding robust action to rescue about 276 schoolgirls kidnapped last month by Boko Haram militants in the West African country.   (Robert MacPherson / Agence France-Presse / Getty Images)

A mother of a missing schoolgirl weeps during a rally in Abuja, the Nigerian capital. Nearly 300 students were abducted three weeks ago by the terrorist group Boko Haram.  (Pius Utomi Ekpei / AFP/Getty Images)

Nigerians attend a demonstration in Lagos calling on the government to do more to rescue hundreds of schoolgirls kidnapped last month.  (Sunday Alamba / Associated Press)

Residents of Chibok, Nigeria, say the militant group Boko Haram abducted dozens of schoolgirls from their boarding school in the middle of the night. Above, a screen capture of a video posted on YouTube in April 2012 that purports to show members of Boko Haram.  (AFP/Getty Images)