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WILLARD, Ohio -- Cleanup crews are working to remove the soil impacted after a train derailment in northern Ohio damaged a railcar that leaked flammable liquid and forced hundreds of homes to evacuate.

A CSX Corp. spokesman says much work remains over the next two days to clean up the spill in Willard, about 65 miles southwest of Cleveland.

Gary Sease says it's not clear how much soil will have to be removed.

The damaged car leaked about half of its 26,000 gallons of styrene monomer, which is used to make plastic and rubber products.

The city says about three dozen homes closest to the scene remain evacuated, and residents could be out of their homes until late Friday.

Officials planned to meet Friday evening to discuss the latest on the cleanup.