FOND DU LAC, Wis. (AP) -

Fond du Lac County sheriff's officials say the driver of a van killed in a fiery crash was a 52-year-old Fond du Lac man.

Authorities say his van hit a bridge support under Highway 41 in the Town of Byron and ignited about 1:30 a.m. Tuesday. The driver was the only one in the van.

Investigators say dental records are needed to make a formal identification.

The Wisconsin Department of Transportation will inspect the bridge support for damage.