The bodies of three people were discovered in a car park near a train station in the Swiss Alps town of Wilderswill on Monday, police said, with reports saying they had been shot dead.
Police said they had been alerted to the presence of the bodies in the town near the popular tourist destination of Interlaken at 7:00 am (0600 GMT), but gave no further details.
Media reports said they were killed in a shooting incident and that police were carrying out a forensic search of a hotel balcony that overlooks the car park.