afghanistan. we have congressman peter king standing by with us. first, i do want to get details about this attack from cnn pentagon correspondent barbara starr. tell us what you're picking up from sources. >> reporter: details are still coming in, but tonight we can tell you that u.s. troops, a base where they are located in kabul near the airport there, they came under attack this evening from insurgents. it is being described in this fashion. there was an initial large explosion believed to be from a suicide bomber followed by a small-arms attack. to get to the point immediately, the pentagon does not know at this point if any u.s. troops were killed or injured in this attack. two insurgents killed. they are still gathering information about all of this. this was the third large-complex attack of the day in kabul. two other facilities also coming under attack by insurgents. a lot of concern about what is going on. they know there's a certain