Nearly 50 tons of material for manufacturing feed went up in smoke Sunday evening at a plant in Chungcheong Province, South Korea.

At 7:23 p.m. fire broke out at the Daekyung Plant in Nonsan and burned nearly three hours, local media report. No casualties were reported.

Fire officials suspect that the fire originated with spontaneous combustion in wood used as fuel stored in the raw material warehouse.

Nonsan is an important agricultural center in South Korea.