An explosion that brought down part of an animal feed processing plant in Omaha on Monday morning killed two people and seriously injured 10 others, authorities said, according to AP.The search for bodies in the crippled International Nutrition plant progressed slowly Monday and had to be suspended in the evening. Omaha Police Lt. Darci Tierney said all 38 of the workers who were in the building at the time had been accounted for, so the death toll wasn't expected to grow.Officials said two workers died, 10 were hospitalized and seven were hurt but refused treatment. The other 19 workers escaped.