The International Committee of the Red Cross said it has treated more than 7,600 people wounded by weapons across Afghanistan since the start of the month when the Taliban escalated its nationwide offensive.

"Our medical teams and physical rehabilitation centers expect to receive patients for months and years to come as they recover from wounds from explosive devices that litter the country, many of them newly laid in recent weeks," ICRC Director-General Robert Mardini said in a statement Tuesday. "It is heartbreaking to see our wards filled with children and young men and women who have lost limbs."

So far, more than 40,000 people wounded by weapons have been treated at ICRC-supported facilities in June, July and August.

"Afghanistan is in the middle of a transition that is difficult for Afghans, and for us, to predict the outcome of," Mardini added. "But we know that humanitarian needs will remain high."

A U.S. official has confirmed that upon landing at al Udeid air base in Qatar on Monday, human remains were found inside the wheel well of a C-17 military plane that had been swarmed by hundreds of people on the tarmac at Kabul’s airport.

This C-17 was seen in video Monday being surrounded, with some individuals clinging to the plane as it taxied down the runway.

Pentagon press secretary John Kirby told ABC's "Good Morning America" on Tuesday that operations at the airport in Kabul have continued after the U.S. military moved more than 700 people out of Afghanistan in the last 24 hours, he said.

Our focus militarily is very squarely on the airport, making sure that we can keep it up and running, that we can maintain security and stability there,” Kirby said, adding they’ve had some issues controlling the civilian side of the airport.

Kirby said the State Department has started giving evacuation cues to Americans sheltered in place. The U.S. effort to evacuate and rehouse some 30,000 individuals from Afghanistan will continue in the coming weeks, he said.

"We plan on being on the ground there in Afghanistan for the next couple of weeks. It's not just about moving out Americans, it is very much about meeting our moral and sacred obligations to those Afghans who helped us over the last 20 years, getting as many out as we can," he said.

Asked directly about Senate Minority Leader Mitch McConnell claiming Biden overruled his military leaders in making the decision to withdraw troops, Kirby said he would not talk about the advice the president was given.

"The commander in chief is the commander in chief. It's not about overruling his military leaders or other advisers," Kirby said. "The president made his decision, and now we're in execution mode, George. That's the way it works."

Ross Wilson, acting U.S. ambassador to Afghanistan, said he is still in Kabul despite media reports that he had fled as the country descended into chaos.

Wilson took to Twitter on Tuesday morning to address the "false reports," saying he remains in Afghanistan's capital "working hard to help [thousands] of U.S. citizens and vulnerable Afghans."

"Our commitment to the Afghan people endures," Wilson tweeted.