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

DES MOINES, Iowa (AP) — Governors from across the U.S. are expected to discuss international trade and the opioid crisis when they meet in Iowa on Friday. About half of the nation’s governors are in Des Moines for the summer meeting of the National Governors Association. They are expected to talk about the benefits of foreign trade and their plans to prevent overdose deaths involving pain relievers and heroin.

BURLINGTON, Iowa (AP) — Police are scouring a small eastern Iowa lake looking for additional human remains, weeks after a decomposed human foot was found near a spillway. The Hawk Eye reports that Burlington police searched Lake West by kayak this week looking for additional body parts. Police Major Dennis Kramer says investigators have been using various techniques to search the lake in northwest Burlington, including pumping water from the five-acre lake.

SAC CITY, Iowa (AP) — Authorities in northwest Iowa say they are investigating the discovery of a human skull near the Raccoon River in southern Sac County. The skull was found Monday afternoon.

CHEROKEE, Iowa (AP) — Tyson Foods says it’s willing to pay $400,000 to end its lease on a northwest Iowa plant it closed in 2014. Tyson says ending its interests in the building should help the owner and economic development officials market the site to other users.