In early hours of Sunday morning in Sudan, three US helicopters carried nearly 100 Americans about 760 miles southeast to Camp Lemonnier, a US Navy-led base in the the country of Djibouti that's home to about 4,000 US and allied service members, civilian personnel and DoD contractors. Anticipating the rescue mission, the Pentagon had pre-positioned additional forces there in recent days. 

Jennifer Griffin of Fox News reports the airlift comprised three Chinook helicopters that transited via Ethiopia and spent one hour on the ground in Sudan. About 100 special operations personnel participated. 

"Today, on my orders, the United States military conducted an operation to extract U.S. government personnel from Khartoum," said President Biden in a statement. "I am proud of the extraordinary commitment of our embassy staff, who performed their duties with courage and professionalism and...I am grateful for the unmatched skill of our service members who successfully brought them to safety."

Biden credited Djibouti, Ethiopia and Saudi Arabia as having been "critical to the success of our operation," and called for an immediate and unconditional ceasefire in Sudan.