Cause of âvery dangerousâ fire at furniture store under investigation Baton Rouge firefighters work to extinguish a fire at a building at 4585 Plank Road in Baton Rouge, La. on Thursday, April 1, 2021. (Source: Baton Rouge Fire Department) By WAFB Staff | April 1, 2021 at 4:15 PM CDT - Updated April 1 at 7:51 PM BATON ROUGE, La. (WAFB) - Firefighters said the cause of a two-alarm fire that started Thursday morning at a three-story furniture store/warehouse in the 4500 block of Plank Road is under investigation. The Baton Rouge Fire Department reported the blaze was determined to be under control just before 4 p.m. Officials added Plank Road near Evangeline Street, which was closed to thru traffic due to the fire, has been reopened.