Kenyan officials say the terror group has used camps to train operatives , including attackers who targeted Westgate mall . At least 20 militants are killed in the joint operation . It targeted a hideout in Kolbio , Somalia , an Air Force official says . It came on the heels of a raid by Kenyan warplanes on a training camp .
At least 20 militants are killed in the joint operation . It targeted a hideout in Kolbio , Somalia , an Air Force official says . It came on the heels of a raid by Kenyan warplanes on a training camp .