FLORENCE COUNTY, S.C. (From news reports) -- Crews battled a fire for nearly four hours Monday at a WestRock facility in Florence County, according to Windy Hill Fire Chief John DeLung.

The cause has not been determined. In 2017, WestRock announced a planned investment at its Florence mill to increase efficiency, quality and service levels, according to a news release. It said the "$410 million investment over two years will include installing a 330" state-of-the-art Kraft Linerboard machine and related infrastructure that will replace three older, narrow-width paper machines."