A Lufthansa flight declared an emergency on approach to Munich Airport.
The flight LH2487 departed London Heathrow Airport tonight at 19:16 BST from runway 09R.
The Airbus A320neo, with registration D-AINH, climbed to 37,000 feet over Belgium before it entered the German Airspace.
Shortly after starting the descend over Frankfurt, the crew declared an emergency (squawk 7700).
The flight was given priority landing and touched down on runway 08R before taxiing to gate 46, possibly due to a medical emergency on board.