The probable cause of how a toxic chemical began leaking into the air Tuesday has been determined.Hamilton County Emergency Management officials said it was not a train derailment, but a railcar with a valve open,

Evacuation and shelter-in-place orders remain in place after a dangerous chemical leak in Whitewater Township.This is happening on U.S. 50, between State Route 128 and Valley Junction Road, not far from the Great Miami River.

An evacuation order remains in effect for residents in an Ohio community as crews work at the scene of a dangerous chemical leak