Airstrikes hit convoys carrying ISIS militants out of Falluja, U.S. officials say. Coalition airstrikes targeted two ISIS convoys leaving Falluja over two days, destroying about 175 vehicles carrying militants out of the city, the spokesman for the U.S. coalition said Thursday. Col. Chris Garver said Iraqi security forces destroyed other vehicles. The Iraqi military provided different numbers, saying coalition and Iraqi forces destroyed a total of 750 ISIS vehicles in the two convoys and killed hundreds of ISIS militants. One of the convoys consisted of 700 vehicles, said the commander of the Iraqi Air Force, Lt. Gen. Hamed al-Maliki. Garver didn't say how many militants were killed. A U.S. official said the destroyed vehicles could have carried as many as 250 ISIS fighters. Garver said a large group of vehicles was detected gathering in neighborhoods southwest of Falluja, west of the Tofaha Bridge, on Tuesday night. Iraqi security forces on the ground positively identified the convoy as belonging to ISIS, he said. "Iraqi air force and coalition airstrikes attacked the convoy throughout the night and into Wednesday morning," Garver said. "We estimate coalition strikes destroyed approximately 55 Daesh vehicles and we know the Iraqi security forces destroyed more." Daesh is another term for ISIS. On Wednesday, a second group of ISIS vehicles and fighters formed east of Ramadi, in the Albu Bali neighborhood, Garver said. "When strikes from both Iraqi and coalition air hit the convoy, the Daesh fighters abandoned their vehicles and fled on foot," he said. "We estimate coalition strikes destroyed approximately 120 Daesh vehicles. Again, we know the Iraqi security forces destroyed more." Turkish officials have strong evidence that the Istanbul airport attackers came to the country from the ISIS stronghold of Raqqa in Syria and that ISIS leadership was involved in the planning of the attack, a senior Turkish government source told CNN on Thursday. Officials believe the men -- identified by another Turkish official and state media as being from Russia, Uzbekistan and Kyrgyzstan -- entered Turkey about a month ago from Raqqa, bringing along with them the suicide vests and bombs used in the attack, the source said. The terrorists rented an apartment in the Fatih district of Istanbul, where one of the attackers left behind his passport, the Turkish government source told CNN. A meeting this week between Attorney General Loretta Lynch and former President Bill Clinton is creating headaches for Hillary Clinton's campaign. Lynch and Bill Clinton met privately in Phoenix Monday after the two realized they were on the same tarmac, an aide to the former president said. The encounter took place ahead of the public release Tuesday morning of the House Benghazi Committee's report on the 2012 attack on a U.S. consulate in Libya. The meeting is raising questions about whether the independence of the Justice Department, which is conducting an investigation of Hillary Clinton's private email server, might have been compromised. Road to 270: The 2016 Electoral Map Presumptive Republican nominee Donald Trump said Thursday the meeting was "terrible." "It was really a sneak," Trump told conservative talk show host Mike Gallagher. "You see a thing like this and, even in terms of judgment, how bad of judgment is it for him or for her to do this?