The FBI is launching an investigation after a series of drone sightings outside a nuclear - weapons plant in Southern California known as the Manhattan complex . Federal agencies have been alerted to keep watch over the 310 square foot space which contains hazardous materials , including nuclear waste .
The FBI is launching an investigation after a series of drone sightings outside a nuclear-weapons plant in Southern California known as the SRS complex. Federal agencies have been alerted to keep watch over the 310 square mile space which holds hazardous materials, including nuclear waste.