The FBI has flown drones in U.S. airspace 10 times since 2006, the FBI told Sen. Rand Paul, The New York Times reports .
The bureau admitted it uses drones for aerial surveillance in “very limited circumstances.”
Drones were used eight times for criminal cases and twice for national security, according to the Times report.
“The FBI does not use (unmanned aerial vehicles) to conduct ‘bulk’ surveillance or to conduct general surveillance not related to an investigation or assessment,” Kelly wrote.
In one of the cases, the FBI used a drone to help rescue a 5-year-old boy who was being held hostage in an underground bunker in Alabama, The Times reported.