U.S. troops to withdraw from northern Syria, Defense Sec. Esper says

U.S. troops were preparing to withdraw from northern Syria Sunday as Turkish forces continued their advance.
Hundreds of Islamic State group supporters escaped from a displacement camp in the area and there were reports of alleged atrocities amid growing international alarm.
The situation on the ground was deteriorating rapidly, a U.S. official with direct knowledge told NBC News.
U.S. forces were at risk of being isolated and there was increased risk of confrontation between Turkish force