Schoolgirls who managed to escape from the clutches of the Islamist militant group Boko Haram have described their ordeal as the search for others still being held hostage by the group continues.
One said she was shot at when she ran off after being sent to fetch water. Two others girls jumped from a moving lorry as it slowed and hid in bushes overnight in order to escape their kidnappers.
"They took us away in a convoy of lorries," one of them told Sky News reporters.
"We travelled through the night before reaching the final destination in the forest.
"The following day we were sent to fetch water. That was when we seized the opportunity and bolted.
They arrived back in Chibok, the site of the school where over 200 girls were taken, two days later. Abubakar Shekau, the leader of the group, has threatened to sell the girls into slavery.
In pictures: Nigeria kidnapped schoolgirls
In pictures: Nigeria kidnapped schoolgirls
A total of 276 girls were abducted from the northeastern town of Chibok, in Borno state, which has a sizeable Christian community. Some 223 are still missing
One of the kidnapped girls looks into a camera
One of the missing girls talking to the camera
The missing Nigerian schoolgirls, wearing the full-length hijab and praying in an undisclosed rural location. Boko Haram alleging they had converted them to Islam
Girls wearing the full-length hijab holding a flag reading "There is no god, but Allah" and "Mohammed is Allah's prophet"
A man claiming to be the leader of Nigerian Islamist extremist group Boko Haram Abubakar Shekau
Abubakar Shekau speaks on the video
Girls, wearing the full-length hijab and praying are filmed by an unidentified man (R) in an undisclosed rural location
People carry signs as they attend a protest demanding the release of abducted secondary school girls in the remote village of Chibok in Lagos
A protester demonstrates against the kidnapping of school girls in Nigeria, outside the Nigerian Embassy in London
Chief International Correspondent Christiane Amanpour and Prime Minister David Cameron appearing on the BBC1 current affairs programme
People participate in a "Bring Back Our Girls" campaign demonstration and candlelight vigil in Los Angeles
Girls holding heart shaped banners in a "Bring Back Our Girls" campaign demonstration and candlelight vigil in Los Angeles
14/19 South Africa
South Africans protest in solidarity against the abduction of hundreds of schoolgirls in Nigeria by the Muslim extremist group Boko Haram and what protesters said was the failure of the Nigerian government and international community to rescue them, during a march to the Nigerian Consulate in Johannesburg
Karilyn Coates (10) joins others in a candlelight vigil for the more than 300 girls abducted by Boko Haram in Nigeria, at All Souls Unitarian Church in Colorado Springs
Mothers of the missing Chibok school girls abducted by Boko Haram Islamists gather to receive informations from officials. Nigeria's president said that Boko Haram's mass abduction of more than 200 schoolgirls would mark a turning point in the battle against the Islamists, as world powers joined the search to rescue the hostages
Former Nigerian Education Minister and Vice-President of the World Bank's Africa division (3rd L) Obiageli Ezekwesilieze speaks as she leads a march of Nigeria women and mothers of the kidnapped girls of Chibok, calling for their freedom in Abuja
18/19 Bring Back Our Girls
Kelly Hoppen tweeted: 'Please make sure you do this, we must stand together and not forget them'
19/19 Bring Back Our Girls
E.L. Rock Star tweeted: 'Join The Movement'
Nigeria's Army has now posted two divisions to locate the girls. The soldiers are stationed in the border region close to Chad, Cameroon and Niger to work with other security agencies, said General Chris Olukolade, spokesman for the Defence Headquarters.
The government of President Goodluck Jonathan has faced criticism for its slow response since Boko Haram militants stormed the school on April 14. Fifty have escaped but more than 200 remain with the insurgents.
Earlier, Michelle Obama condemned the kidnap as an "unconscionable act" carried out by a terrorist group determined to keep them from getting an education - "or grown men attempting to snuff out the aspirations of young girls".
The US First Lady delivered the President's weekly address, where she took the opportunity to call for their immediate release.
Ms Obama said she and her husband were "outraged and heartbroken over the mass abduction". "In these girls, Barack and I see our own daughters," Ms Obama said, referring to Malia, 15, and Sasha, 12.
"We see their hopes, their dreams and we can only imagine the anguish their parents are feeling right now."
Intelligence sources involved in the hunt for the girls believe Boko Haram may have split them into four groups, making the search and potential rescue even more dangerous.