“There are some worrying indicators that some MANPADS, type non-specific, have left the country,” said Gen. Carter Ham, head of U.S. Africa Command.

Shapiro cautioned the government doesn’t have “firm reporting” that the missiles have crossed Libya’s border but intends to “ramp up” the effort to account for the missiles. “It’s certainly something that we’re very concerned about,” he said.

Rogers said the administration’s pledge to not deploy troops in Libya made the government hesitant to deploy Americans to track the missiles until recently. “I have some concerns that we may be a little bit late,” he said.