News report, that the aircraft hit the ground with 700 km/h.
If that is true, it must be above the VNO at that altitude. I do not fly the Airbus, but I know, that it has overspeed protection, if it is operated normally (normal law or something).
700 km/hr is 377 knots. At 6000 feet that would be about 335 Knots indicated. I don't know the Airbus, but the Boeing 737 Vmo is 340. I'm guessing the Airbus is similar.