Two American airmen died when their helicopter was shot down, the military said.
All five guns have been accounted for during the time period that the helicopters were shot down.
Word had spread that an American helicopter had been shot down west of the city.
In one scene, the helicopter was shot down by the main character.
The Pentagon said it had no details on how the two helicopters were shot down.
A helicopter is shot down and dozens of troops are killed in the first attack.
Less than a week ago, another American helicopter was shot down in the area.
Two helicopters had already been shot down and destroyed in the area.
But first one helicopter, and then another, was shot down.
When her helicopter was shot down in 1991, several colleagues were killed.