Live Updates: Pentagon sending another 1,000 troops to Afghanistan as Taliban takes control

A Defense Department official said Sunday that 1,000 troops are being sent to the airport in Kabul, Afghanistan, as the capital city neared closer to falling into Taliban hands. The stunning development unfolded rapidly on Sunday as Afghan President Ashraf Ghani fled Kabul and the U.S. evacuated Americans from the country. 

The additional troops will bring the total number of authorized military in Kabul to 6,000, with 3,000 on the ground now. There are still sporadic commercial flights out of Kabul International Airport, which is being run by the U.S. military. There have been reports of sporadic gunfire around the airport, but a Defense Department official said the shelter in place order was an attempt to keep the flow of  people at the airport manageable.