An ammonia leak has been contained and cleaned up at a refrigerated food warehouse in New Stanton, near Interstate 70.
Mike Siemienas, a spokesman for the SuperValu supermarket chain, says the leak was reported about 6:30 a.m. today at its perishable food warehouse.
A few workers in the building were evacuated while a shift about to arrive was kept out until emergency workers gave the all clear about three hours later.
The leak happened when a valve on the company's roof malfunctioned. That's been fixed. Ammonia is pumped into the building as part of its refrigeration process.
Nobody was hurt.