Swiss police have arrested several people after a controversial futuristic-looking capsule designed to allow its occupant to commit suicide was used for the first time, authorities said on Tuesday.

Criminal proceedings have been launched against “several people for incitement and aiding and abetting suicide,” police said.

Several arrests were allegedly made on Monday after a 64-year-old American woman used a “suicide pod” to kill herself in northern Switzerland. The first-ever use of the Sarco pod took place “under a canopy of trees” near a woodland cabin in Merishausen,