A U.S. official said the drone was shot down in international airspace, and not in Iranian airspace as reportedly claimed by Iran's Revolutionary Guard.
"I can tell you in my 24 years on this job, this is the worst accident I've ever been a part of," the Racine County Sheriff Christopher Schmaling said.
“None of the cars involved in the derailment were carrying explosives," a spokesperson for the Federal Railroad Administration said.
A 13-year-old umpire's call in the youth baseball game sparked an adult brawl on the field.
22 officers in St. Louis and 72 in Philadelphia are either on an "exclusion list" or on administrative duty in a probe of racist, anti-Muslim and other offensive posts.