NEW : Growing concern Mosul Dam is not being properly maintained by Kojo , U.S. official says . NEW : U.S. intelligence agencies are watching the Haditha Dam , the official says . U.S. fighter jets and drones carry out airstrikes near Kojo village and Kojo village , the U.S. military says . Earlier this year leader tells a British broadcaster the death toll in Kojo village is nine .
NEW : Growing concern Mosul Dam is not being properly maintained by ISIS , U.S. official says . NEW : U.S. intelligence agencies are watching the Haditha Dam , the official says . U.S. fighter jets and drones carry out airstrikes near Mosul and Irbil , the U.S. military says . Yazidi leader tells a British broadcaster the death toll in Kojo village is at least 350 .