U.S. transportation officials say the Amtrak passenger train that crashed Tuesday night in Pennsylvania was traveling at more than 160 kilometers per hour. That is at least twice the permissible speed.

美国交通部官员表示，周二晚上在宾夕法尼亚州坠毁的美铁客运列车时速超过 160 公里。这至少是允许速度的两倍。