From CNN:  The face of 15-year-old Aziza says it all.

Her mouth slightly agape, tears stream down her face as she glances around the inside of a helicopter with confusion in her eyes.

She looks completely exhausted, overcome with emotion. She cries the whole flight to safety.

The Iraqi air force and fighters with the Kurdish peshmerga carried out a dramatic rescue mission Monday at Mount Sinjar, taking supplies to desperate Yazidis and ferrying a handful of people out, including Aziza.

A CNN crew was on the flight that took diapers, milk, water and food to the site where thousands of people have been driven by ISIS, which calls itself the Islamic State.

CNN’s Ivan Watson, who was on the chopper, described the mission as “heroic.”

Teams hurled out bags and boxes of food from as high as 50 feet before approaching the ground.

“We landed on several short occasions, and that’s where — amid this explosion of dust and chaos — these desperate civilians came racing towards the helicopter, throwing their children on board the aircraft. The crew was just trying to pull up as many people as possible,” Watson said.

Soon, some of the trapped families — including babies and the elderly — were packed into the flight. A man held a water bottle for a woman trying drink, her head propped up on his shoulder.

Others didn’t make it and were left behind as the helicopter pulled away.

“It was chaotic. It was crazy, but we were able to then lift off with about 20 civilians,” Watson said.

Kurdish official warns of genocide

Yazidis, among Iraq’s smallest minorities, are of Kurdish descent, and their religion is considered a pre-Islamic sect that draws from Christianity, Judaism and Zoroastrianism.

One of the oldest religious communities in the world, they have long suffered persecution, with many Muslims referring to them as devil worshippers.

More than a week ago, they fled into the surrounding mountains when ISIS fighters stormed the town of Sinjar.

Now, trapped without food, water or medical care in the summer heat, thousands of families are in desperate need of help.

A senior Kurdish official warned Monday of the potential of genocide against the Yazidi people.

Speaking to CNN’s Watson, Fazil Mirani repeatedly called for a humanitarian intervention. He estimated that as many as 70,000 people remain trapped on Mount Sinjar, and that at least 100 people have died so far from dehydration and the heat.

CNN could not independently confirm those estimates.

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The United States on Monday conducted airstrikes on four ISIS checkpoints and “multiple” ISIS vehicles near Mount Sinjar, according to U.S. Central Command.

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