Heartbreaking moment parents of girls captured by Boko Haram in Nigeria see their daughters for the first time in two years as the terror group release a chilling 'proof of life' video

• Video released by terror cell to provide 'proof of life' to Nigerian authorities
• At least 15 girls are recorded stating their names and where they are from
• Show no visible signs of injury or maltreatment and do not look starved
• Recording shown to the girls' parents who break down upon watching
• 276 pupils stolen from Chibok Government Secondary School in April 2014
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