US troops are taking part in the evacuation of Ukraine from a gridlock situation.
The operation started Wednesday morning, with more than 1,000 troops from the US Special Operations Command and its affiliate, Delta Force, on the ground.
The Ukrainian government is reporting that more than 50,000 people have been forced to flee their homes.
In the meantime, many of those in need are trapped in a government building, with residents forced to sleep on floors covered with debris.
Ukrainian President Petro Poroshenko called on the international community to provide humanitarian assistance, but the United States has denied any role in assisting the government in the crisis.
“The United States is not a country that can be relied on to do the right thing,” Poroshenko said in a televised address on Thursday.
“We do not have the military strength to do so.
We are not equipped to do that.”
He added, “If the international forces, the humanitarian groups are not prepared to come, then what are we going to do?”
The US military is sending additional troops and supplies to the region as the crisis worsens.
The UN estimates more than 3.5 million people in eastern Ukraine are at risk of starvation.
The Pentagon said it is sending troops to Ukraine to help train Ukrainian forces and provide logistics support.
The US Army’s 5th Brigade, 1st Armored Division, and the 2nd Armored Brigade of the 4th Infantry Division are also sending additional support to Ukraine.