Just hours after U.S. President Donald Trump downplayed Turkey's assault on Kurds in Syria by likening it to a parking lot squabble, Amnesty International on Friday presented damning evidence that Turkish forces and their allies have committed war crimes and displayed a "shameful disregard for civilian life" in northeastern Syria.

Based on video footage, medical records, and witness testimony from journalists and aid workers, Amnesty's new report details numerous appalling instances of Turkish forces and their Syrian rebel allies indiscriminately bombarding residential areas, abducting civilians, and committing murder in cold blood.

"The Turkish military offensive into northeast Syria has wreaked havoc on the lives of Syrian civilians who once again have been forced to flee their homes and are living in constant fear of indiscriminate bombardment, abductions, and summary killings."

—Kumi Naidoo, Amnesty International

"In one of the most horrific attacks documented," Amnesty said, "a Kurdish Red Crescent worker described how he pulled bodies from the wreckage of a Turkish airstrike on 12 October at around 7 am, in which two munitions landed near to a school in Salhiye, where civilians displaced by the fighting had sought shelter."

The aid worker told Amnesty that four people, including two children, were killed in the Turkish strike.

"I couldn't tell if they were boys or girls because their corpses were black. They looked like charcoal," he said. "The other two people killed were older men, they looked older than 50. Honestly, I am still in shock."

The report also highlights the case of Hevrin Khalaf, a Kurdish female politician and Secretary General of the Future Syria political party who was "dragged out of her car, beaten, and shot dead" on October 12 by fighters with Ahrar al-Sharqiya, a Syrian rebel group allied with Turkey.

"A medical report seen by Amnesty International lists a series of injuries inflicted on Hevrin Khalaf," the group said, "including multiple gunshot wounds to the head, face, and back as well as fractures to her legs, face and skull, detachment of skin from her skull, and loss of hair as a result of being dragged by the hair."

Kumi Naidoo, secretary general of Amnesty International, said in a statement that "killing defenseless people in cold blood is utterly reprehensible and a blatant war crime."

"The Turkish military offensive into northeast Syria has wreaked havoc on the lives of Syrian civilians who once again have been forced to flee their homes and are living in constant fear of indiscriminate bombardment, abductions, and summary killings," said Naidoo. "Turkish military forces and their allies have displayed an utterly callous disregard for civilian lives."

In addition to demanding that Turkey halt its attacks on northeastern Syria, Amnesty urged nations that export arms to the country to immediately suspend any weapons transfers.

"The USA is the largest exporter of weapons to Turkey," Amnesty noted. "Other suppliers include Italy, Germany, Brazil, and India."

We have evidence that Turkish military & coalition of Turkey-backed Syrian armed groups carried out serious violations & war crimes, including summary killings & unlawful attacks that have killed & injured civilians, during offensive in northeast Syria. https://t.co/wozimXUFPG — Amnesty International (@amnesty) October 18, 2019

Amnesty's report comes after Trump—who paved the way for the Turkish military operation by abruptly withdrawing U.S. forces from northeastern Syria—made light of the humanitarian catastrophe in the region by comparing it to a parking lot scrap between "two kids."

"Sometimes you have to let 'em fight," Trump said during a campaign rally in Dallas, Texas. "Like two kids in a lot, you gotta let 'em fight, then you pull 'em apart."

Observers expressed horror at Trump's remarks.

"The president is talking about genocidal slaughter and hundreds of thousands of war victims like it's a playground squabble," said S.V. Dáte, White House correspondent for HuffPost.