Residents of the Ohio village of East Palestine remain unable to return home after a controlled release Monday of a toxic chemical from cars that were part of a train derailment three days ago, Mayor Trent Conaway said during an evening news conference. Train derailment in northeastern Ohio sparks massive fire Ahead of the controlled release, the evacuation zone surrounding the fiery derailment site expanded to two states, Ohio Gov. Correction: An earlier version of this story incorrectly described the potential fallout from five derailed train cars carrying vinyl chloride