The cause of the fire last week at Carpet Mania in Columbus will remain unknown.

Capt. Mike Wilson, spokesman for the Columbus Fire Department, explains that the damage was so great that no cause could be determined.

Wilson said  said that investigators have four categories of causes they can assign ranging from accidental, natural causes, incendiary to undetermined.

In the case of the fire on 10th Street last Wednesday, investigators say that the cause will remain as undetermined which means a cause can not be proven.

The four alarm fire caused more than $2 million dollars in damage, completely destroying the Carpet Mania store and warehouse, along with CrossFit Retaliation Gym. A third business, Advantage One Imaging Center, sustained significant water and smoke damage.