25 day of July in the Swiss Canton of Wallis crashed a small private plane, reported to local police.
An eyewitness called emergency services and said that he saw the plane falling. Then he called back and reported the black smoke on the hillside.
The crash site is located in the Swiss Alps; to search for the wreckage was sent to the helicopter.
At the scene found four bodies: two Swiss at the age of 66 and 50 years and two Austrians (50 and 46).
The investigation conducted by the Swiss office of transport security. It is known that the aircraft flew from the airfield in the Canton of Bern and had to land there.