Preliminary data based on the notification from the authorities of Saudi Arabia:
During flight, rapid change of cabin pressure followed by ECAM WARN (CAB PR EXCESS CAB ALT). Cabin passenger oxygen masks were deployed. Cabin altitude was rising rapidly, the flight performed emergency descent to 10000 ft, MAYDAY was declared and squawked 7700. The flight diverted to Qassim, Saudi Arabia (ELQ/OEGS) and landed safely.