'Our daughter is facing a death sentence,' parents of Leah Sharibu cry out

Leah Sharibu, the only Dapchi schoolgirl in Boko Haram's captivity

Lagos, Nigeria (CNN)The parents of kidnapped Nigerian schoolgirl Leah Sharibu have told CNN that terror group Boko Haram has issued an execution deadline for their daughter.

Nathan Sharibu said Boko Haram militants threatened to kill their daughter in October if their demands were not met in a video shown to him by local media reporters.
Her parents have issued desperate pleas to the Nigerian government to continue negotiations with their daughter's abductors as it has done for other schoolgirls abducted by the militants in February.
"The terrorist threatened to kill Leah in October if they don't get any response to their demands. Time is running out, that is why I am calling on the government to keep talking to them," her father Nathan said.
    "Our daughter is facing a death sentence," he added.
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    Presidential spokesman Garba Shehu told CNN Thursday that the government was working with international organizations, which helped in past negotiations to plead with the abductors following the ultimatum.
    "The President contacted international negotiators when they issued the threat some few weeks ago. We are prevailing on them to spare Leah's life and that of others in their captivity, " Shehu said.
    President Buhari has also called the family directly to assure them that his administration is doing all it can to secure her release.