Here is the latest Iowa news from The Associated Press at 3:35 a.m. CDT

KNOXVILLE, Iowa (AP) — Am Iowa woman has died after an explosion at a gender reveal party created debris that hit her. The Marion County Sheriff’s office says the explosion happened at a home in Knoxville, Iowa, around 4 p.m. Saturday. Deputies arrived to find a 56-year-old woman dead. Investigators determined that an explosion during the gender reveal announcement caused the woman’s death. The party was being held to announce the gender of a baby a couple is expecting.

MUSCATINE, Iowa (AP) — A growing trend has emerged in the states that matter most in the Democratic Party’s presidential primary fight: Voters appear to be getting less certain of their choice as Election Day approaches. The escalating uncertainty is in part a reflection of the historically large number of candidates still in the race. But it also reflects a deepening sense of unease about the party’s top-tier candidates whose political liabilities are becoming more visible as Iowa’s Feb. 3 caucuses rapidly approach.

CHEROKEE, Iowa (AP) — An idle Iowa meat-processing plant that closed earlier this year after only a few months of operation has been sold. The Sioux City Journal reports that Lopez Foods paid $5.8 million for the plant in Cherokee, Iowa, and the company plans to restart operations there by early next year.

RUDD, Iowa (AP) — A 9-year-old boy died and four other people were hurt after a two-vehicle crash in northern Iowa over the weekend. The Waterloo-Cedar Falls Courier reports the crash happened in Rudd, Iowa, on Saturday morning. Royce Fisher died. Rudd is about 65 miles (104.6 kilometers) northwest of Waterloo, Iowa. The Iowa State Patrol says a Ford Taurus driven by 29-year-old Jesse Blades went through a stop sign and struck the passenger side of a Ford Windstar minivan driven by 57-year-old Ronald Fisher.