Fifteen people have been killed in an overnight attack in north Cameroon. Security sources said, the attack took place in the town of Gakara close to the Nigerian border.<br/><br/>Blaming terror group Boko Haram for the attack, the sources said, 15 people were shot dead and some were kidnapped. Many houses were also torched.<br/><br/>Gakara is just a kilometre from the Nigerian border town of Kerawa where the Boko Haram terrorists have long been in control.