EAST PALESTINE, Ohio (AP) — Crews began releasing toxic chemicals into the air from five derailed tanker cars that were in danger of exploding Monday after warning residents near the Ohio-Pennsylvania state line to leave immediately or face the possibility of death. Scott Deutsch of Norfolk Southern Railway said doing this during the daytime would allow the fumes to disperse more quickly and prevent the rail cars from exploding and sending shrapnel and other debris from flying through the neighborhood. ___This story has been corrected to show that the evacuation zone includes about 20 Pennsylvania residences, not residents___