Here is the latest Iowa news from The Associated Press at 4:15 a.m. CST

DES MOINES, Iowa (AP) — Police say a 4-year-old Des Moines child has died in an accident involving a dog collar. Police say a 911 call placed around 2:45 p.m. Friday reported an unresponsive child. Arriving officers performed CPR on the child, who was taken to an area hospital and later pronounced dead. Police Sgt. Ryan Doty said Saturday the death appears to have been an accident. He declined to detail how the child died, but confirmed the death involved a dog collar.

KALONA, Iowa (AP) — Officials say a southeastern Iowa high school student has died after falling at a school social. The Iowa City Press-Citizen reports that the incident happened Friday night at the Iowa Mennonite School in Kalona. School principal Steve Schrag says in a written release that 10th-grader Teresa Cardenas, of Iowa City, died after falling at the school social. He said emergency crews worked to revive her but were unable to. Officials did not describe the nature of the fall.

CHARLES CITY, Iowa (AP) — Iowa authorities say a body found in rural northeastern Iowa has been identified as that of a missing man. This Iowa Department of Public Safety says an autopsy completed Saturday positively identified the body as that of 28-year-old Michael Johns, who was last seen alive early on Oct. 25. His body was found Friday about 10 miles south of Charles City. Officials say his death has been ruled a homicide, but they declined to release the cause of death, citing the ongoing investigation.

DES MOINES, Iowa (AP) — Authorities are investigating the death of a 4-year-old child in western Iowa. Des Moines television station KCCI reports that the death occurred Friday in Carroll after police there received a report around 7 a.m. of a child not breathing. Carroll Police Chief Brad Burke says officers arrived at the home and found 4-year-old Morris Wurok unresponsive. He was taken to a hospital, where he was pronounced dead. Burke calls the death suspicious and says police are investigating.