The leak released 3,000 gallons of anhydrous nitric acid, which became a plume of nitric oxide gas and prompted an evacuation near the leak. The Vinton County Sheriff's Office said it was evacuating the Village of Zaleski,

A massive nitric acid leak spewed orange plumes of smoke into the sky, forcing a no-fly zone and mass evacuations around an Ohio chemical plant, according to reports.

A chemical leak from an explosives manufacturing plant is prompting evacuations Wednesday in and around Zaleski in Vinton County, according to the sheriff’s office.