One of the teenagers who escaped from the Islamic extremist group that abducted more than 300 schoolgirls has said the kidnapping was "too terrifying for words", and that she is scared to go back to school.
Sarah Lawan, a 19-year-old science student, spoke yesterday as Nigerians prayed for the safety of the 276 students still held captive.
Lawan said that more of the girls could have escaped but that they were frightened by their captors' threats to shoot them. She spoke in a phone interview from Chibok, her home and the site of the mass abduction in north-east Nigeria.
The Government's failure to rescue the remaining captives has attracted mounting outrage. Last week, Abuja accepted international help after ignoring earlier offers.
Experts in Nigeria to assist in search and rescue efforts include US hostage negotiators and others from Britain, France, China and Spain. Israel also offered assistance yesterday.