Here is the latest Iowa news from The Associated Press at 5:15 a.m. CDT

LINCOLN, Neb. (AP) — All roads and nature trails at the DeSoto National Wildlife Refuge remain closed weekend for a scheduled deer hunt. The closure began Saturday and runs through Sunday to ensure public safety during the white-tailed deer hunt. A second antlerless muzzleloader deer hunt is scheduled for the weekend of Dec. 16-17. A temporarily closure will take place that weekend as well.

OGALLALA, Neb. (AP) — A 22-year-old Kansas man has pleaded not guilty to vehicular homicide charges for the crash deaths of four Iowa residents in western Nebraska. The North Platte Telegraph reports that Jeser Cisneros-Hernandez, of Liberal, Kansas, entered the pleas Friday in Keith County District Court. Cisneros-Hernandez is charged with four counts of motor-vehicle homicide, reckless driving and driving left of the center of the road.

DES MOINES, Iowa (AP) — A crash in southwest Des Moines has left two people dead and two more injured. Des Moines television station KCCI reports that the head-on crash happened around 1:30 p.m. Saturday on Southeast Army Post Road. Investigators say the crash happened when one car entered oncoming traffic in an attempt to pass another vehicle. Two people died at the scene, and two were taken to hospitals in critical condition.

DES MOINES, Iowa (AP) — A judge has dismissed a lawsuit filed by Iowa’s largest teachers union challenging a new law that eliminated most collective bargaining rights for public workers. The judge said in his ruling that the new law does not violate workers’ constitutional rights to equal protection. The Iowa State Education Association, which represents 34,000 education professionals across the state, says it’s considering an appeal.