Criminal case opened after Sarco capsule – which releases nitrogen gas at the touch of a button – used in Merishausen

Swiss police say they have opened a criminal investigation and arrested several people after the suspected death of a woman in a so-called suicide capsule.

According to local reports, the capsule, named the Sarco Pod by its inventor, was used for the first time on Monday afternoon in a forest close to the German border in the Swiss town of Merishausen.

The person who died was reportedly a 64-year-old American woman. Switzerland is one of the few countries in the world where assisted suicide is legal, under certain conditions.