US authorities announced on Monday the death of the four passengers who were boarding a private plane that crashed in Virginia. Washington state police said "rescuers found no survivors" when they arrived on foot at the crash site of the small plane in the Virginia area.
Earlier, the U.S. military's North American Air Defense Command said two F-16 fighter jets responded to the Cessna 560 Citation did not respond to calls over Washington, D.C., and northern Virginia. The interception of thesmall civilian aircraft by the warplanes provoked a sound explosion.