Here is the latest Iowa news from The Associated Press at 4:55 a.m. CST

GUTHRIE CENTER, Iowa (AP) — Authorities believe the pilot of a small plane that crashed in central Iowa, killing all four people on board, may have suffered a heart attack. The Guthrie County Sheriff’s Office says in a news release that a student pilot was going to attempt an emergency landing Friday night because the pilot apparently had a heart attack, but the plane dropped off radar southwest of Guthrie Center airport.

OMAHA, Neb. (AP) — The city of Omaha and its fire and police departments are teaming up with the U.S. Marine Corps Reserve Toys for Tots program to help make the holiday season memorable for less-fortunate children. The program gives to children in Omaha and neighboring Council Bluffs, Iowa, Lincoln and the Hastings and Grand Island areas. Most Omaha fire stations and police precincts will be accepting public donations of new, unwrapped toys through Dec. 1.

DES MOINES, Iowa (AP) — Agribusiness experts say high production costs and low commodity prices are forcing more and more dairy farmers out of business in Iowa and other dairy states. Experts say the global flood of milk has depressed prices to about half what they were in 2014, and they still haven’t hit all-time lows. University of Wisconsin-Madison dairy policy analyst Mark Stephenson says the U.S. needs a significant increase in exports to bring about a dramatic improvement in prices.