Sent_en: 2ms The initial investigation concluded the disaster to have been a dust explosion that ignited under the silos, but investigators from the U.S. Chemical Safety Board (CSB) and the Occupational Health and Safety Administration (OSHA) have been hampered as OSHA declared them to be unsafe after the accident.
Sent_yy: Siasatan awal menyimpulkan bahawa bencana itu adalah letupan habuk yang dinyalakan di bawah silo, tetapi penyiasat-penyiasat dari Lembaga Keselamatan Kimia U.S. (CSB) dan Pentadbiran Kesihatan dan Keselamatan Pekerjaan (OSHA) telah menghalang siasatan lanjutan kerana OSHA mengisytiharkan ia tidak selamat selepas kemalangan.