(Florence, Ky.) - A Florence warehouse had to be evacuated Thursday morning after an ammonia spill.

The leak was reported in the Schwan’s Pizza Factory at 7605 Empire Drive at about 6:00.

Several employees reported feeling ill. Nobody was hospitalized.

Employees were kept out of the building as emergency crews worked to contain the spill. Fans were set up in the building to help blow out the ammonia gas.

Frozen pizzas are manufactured in that Florence facility.