"The plane did not explode in the air, it was whole until it hit the ground… The curve of the plane's movement is comparable to the movement on an aircraft controlled by the autopilot," Remi Jouty said during a press conference.
It is too early to make any assumptions regarding what caused the incident, according to Jouti.
Earlier in the day, French President Francois Hollande stated that parts of the second flight data recorder had been found.
The Germanwings passenger aircraft crashed in the French Alps on Tuesday morning, while en route from Barcelona to Dusseldorf. All 144 passengers and six crew members on board the aircraft died in the crash.