According to BGNES, a Bulgarian government Falcon with Prime Minister Boyko Borisov had to perform an emergency landing in the capital city of Sofia.
The landing gear broke down during the first attempt to land, so the plane's pilot had to attempt a manual landing. Fortunately, the incident resulted in no casualties, and Borisov managed to reach his destination safely.
It is not clear, however, what caused the dangerous malfunction on board.