The plane had left from Chicago and was heading to Canada on a fishing trip, officials said.
At least two elementary school educators from suburban Bensenville are among the victims in a deadly plane crash overnight Saturday, CBS Chicago reports.
The accident remains under investigation by the Price County Sheriff's office, National Transportation Safety Board and Federal Aviation Administration. Price County Sheriff Brian Schmidt told WJFW-TV that the main passenger compartment of the plane was found in woods near Highway 111, with other debris scattered along the highway.
AMBER Alert issued for three Anderson, Indiana children
A statewide Amber Alert has been issued for three IN children authorities believe were abducted and are IN "extreme danger". Police ask anyone with information to contact the Anderson Police Department at 1-888-582-6237 or 911.
The Bensenville School District said that maintenance director Charles "Chuck" Tomlitz was also on board and was killed. Investigators did not release any details about the identities of the victims at a Sunday news conference, but the Sheriff's Office confirmed they were all adults, WSAW reported.
The crash occurred in a wooded, swampy area, said Lieutenant Gabe Lind of the sheriff's office.
The NTSB said the pilot radioed air traffic controllers about the weather right before the plane crashed.