PLANT CITY — A steel plate inside an inactive sulfuric acid tank collapsed Monday, injuring three contract employees at CF Industries who fell about eight feet to the surface, company officials said.
Firefighters responded to the phosphate plant on County Line Road and Paul Buchman Highway shortly after 2:15 p.m. and took the victims to nearby hospitals. Two were seriously injured; the third had minor injuries, according to Hillsborough County Fire Rescue. Their names weren't released.
The employees were doing maintenance work on the quarter-inch steel surface, which is one of several ceilings inside the 50-foot tank, said CF spokesman Bob May. The structure has been out of service and free of chemicals for 10 days, May said.
The three men were wearing hard hats and safety glasses, May said, and the injuries are not life-threatening.
It's unclear why the plate collapsed. An internal investigation is underway, CF officials said.