LAS VEGAS -- Police in Nevada are investigating the death of a woman found frozen inside a cryotherapy chamber.
Chelsea Ake-Salvacion was trapped in the chamber for at least 10 hours at a clinic in Las Vegas that offers cryotherapy.
The therapy has been used to reduce inflammation, slow signs of aging and help heal sports injuries.
Ake-Salvacion worked an evening shift at the Rejuvenice spa, which offers two forms of deep-freeze therapy in tanks that can reach minus 240 degrees, she stayed to give herself a cryotherapy session.
Police said Ake-Salvacion, 24, used the machine without assistance and likely suffocated. Her death was attributed to an "operator error."