Explosion possible in wake of Ohio train derailment involving hazardous materials

As federal investigators worked to find out why a 150-car train derailed in northeastern Ohio, the state’s governor warned late Sunday that unstable temperatures in a car transporting chemicals could lead to an explosion.

The area most at risk of being affected by the Friday crash, that within a 1-mile radius of the crash in the village of East Palestine, was evacuated by early Saturday and remained off-limits, officials said.