NEW : Growing concern Mosul Dam is not being properly maintained by ISIS , U.S. official says . NEW : Iraqi forces have retaken the city of Tikrit from ISIS, a senior military officer said on Tuesday. CNN can not independently confirm the killings and abductions , but the claims are similar to reports provided by survivors of ISIS attacks in Iraq . 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 .
NEW : Growing concern Mosul Dam is not being properly maintained by ISIS , U.S. official says . NEW : Iraqi forces have retaken the city of Tikrit from ISIS, a senior military officer said on Tuesday. 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 .