Penyebab pasti dari kematian mereka secara resmi belum ditetapkan sampai hasil otopsi diketahui, namun tampaknya orang-orang itu tewas karena kehabisan oksigen, bukan karena gas beracun, katanya.
The official cause of death would not be confirmed until there was an autopsy, but initially it looked like lack of oxygen rather than toxic gas, she said.