Five environmental workers on their way to help following a metal plant explosion in Ohio were killed as a small plane crashed near the Clinton National Airport in Arkansas, say officials.
官員說，一架飛機在阿肯色州克林頓國家機場附近墜毀，五名環保工作者在前往俄亥俄州一家金屬廠爆炸後前往提供幫助的途中遇難。