Here is the latest Iowa news from The Associated Press at 3:40 a.m. CDT

DES MOINES, Iowa (AP) — It isn’t clear how the most basic of baking ingredients, flour, became contaminated with bacteria normally found in animal feces. The E. coli-tainted flour from General Mills has sickened 46 people in 21 states and prompted about 45 million pounds of it to be recalled. Plus, the Food and Drug Administration is cautioning raw cookie dough and cake batter aficionados not to indulge.

COUNCIL BLUFFS, Iowa (AP) — Expert says human remains found at a Council Bluffs construction site may belong to Mormon pioneers who crossed the area in the 1800s. The Daily Nonpareil reports that the bones were found Thursday and Friday at a construction site and will be examined at the University of Iowa.

OMAHA, Neb. (AP) — A long-awaited national cemetery for U.S. military veterans and their families south of Omaha will be dedicated this week before accepting its first burials this fall. The Omaha National Cemetery will be dedicated Friday at an off-site ceremony in Sarpy County. Cemetery director Cindy Van Bibber says the U.S. Department of Veterans Affairs is expected to complete an initial segment of the property to be used for in-ground casket and cremation burials as early as September.

DES MOINES, Iowa (AP) — An agency overseeing a grant program that addresses abandoned and neglected buildings in rural Iowa communities has no immediate plans to change how it administers the program following a state audit that questioned its accountability reporting. The Iowa Department of Natural Resources says it plans to run its Derelict Building Grant Program in the same manner when the agency considers a new round of applicants beginning Monday.