Here is the latest Iowa news from The Associated Press…

MARQUETTE, Iowa (AP) — Authorities are investigating the cause of a massive fire that damaged or destroyed several businesses and homes in the northeast Iowa community of Marquette. Firefighters from eight area departments battled the blaze for hours after it was first reported Monday morning on North Street in downtown Marquette. No injuries were reported.

IOWA CITY, Iowa (AP) — A judge says a cancer-stricken 73-year-old man accused of killing his wife in 1997 can leave an Iowa prison and live at his Minnesota home until trial. Judge Paul Miller ruled Tuesday that John Bloomfield will be on house arrest at his St. Paul, Minn., residence until the July 8 trial. Bloomfield is charged in the slaying of 57-year-old Frances Bloomfield.

DES MOINES, Iowa (AP) — The Iowa House has overwhelmingly passed legislation that aims to increase penalties for offenders in kidnapping cases involving minors. The bill would toughen penalties for kidnapping offenders in cases involving victims 17 years old and younger. It also would eliminate earned-time credit that reduces an inmate’s sentence for good behavior.

DES MOINES, Iowa (AP) — The Iowa House has approved a bill that would require state educators to provide schools with information on radon safety and encourage them to test for the gas. Schools would report to the state Department of Education about how they’re practicing radon safety. The bill returns to the Senate.