"May God curse every one of those who has failed to free our girls," said Enoch Mark, whose daughter and two nieces were among the more than 100 students abducted from the Government Girls Secondary School in the Chibok area of northeastern Borno state.
The attack was one of the most shocking in Boko Haram's five-year uprising, which has claimed thousands of lives across northern and central Nigeria.
Borno officials have said that 129 girls were kidnapped when gunmen stormed the school after sundown on April 14 and forced the students -- who are between 12 and 17 years old -- onto a convoy of trucks. Officials said 52 have since escaped.
Locals, including the school's principal, have rejected those numbers, insisting that 230 students were snatched and that 187 are still being held hostage.
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Mark told AFP that his wife has hardly slept since the attack, lying awake at night "thinking about our daughter".
"From the information we received yesterday from Cameroonian border towns our abducted girls were taken... Into Chad and Cameroon," he said.