Islamist militants of the Boko Haram group have released at least 80 school girls from a group of 276 they abducted in north-eastern Nigeria three years ago. The release reportedly came after talks with the government. The school girls were now in the custody of the Nigerian army. <br/><br/>They were brought by road from a remote area to an army base in Banki near the Cameroon border. A military source said the freed girls will be flown to Borno's state capital of Maiduguri today. More than 100 girls are still missing. <br/><br/>Many of the Chibok girls were Christian, but were encouraged to convert to Islam and to marry their kidnappers during their time in captivity. The abduction of the so-called Chibok girls triggered a global outcry and sparked a huge social media campaign. <br/><br/>