CROTON, Ohio (AP) — A fast-moving, massive fire erupted early Tuesday at a large egg farm in Ohio, but it wasn’t clear if any chickens at the site had been harmed.

The fire was reported shortly before 3:30 a.m. at the Trillium Farms facility in Croton, authorities said, and sent flames shooting high into the sky. It apparently was burning in a front building at the site, officials said, and not in the chicken coop buildings.

No human injuries were reported in the blaze, which has continued to burn for several hours while dozens of firefighters work to contain it.

The cause of the fire was not immediately known.