EMERGENCY KLM #KL591 from Amsterdam to Johannesburg declared an emergency due to a weather radar issue

UPDATE 14:00 UTC KLM #KL591 safely landed at Amsterdam Schiphol airport.

UPDATE Passengers of flight #KL591 will board a spare aircraft.

UPDATE 13:23 UTC #KL591 is returning to Amsterdam due to a weather radar issue. 

UPDATE 13:13 UTC KLM #KL591 is returning to Amsterdam. Route over CDG. Flight delayed about 5hrs.

UPDATE 12:58 UTC KLM #KL591 to Johannesburg is now heading to north.