A 39-year-old Ottawa man was found dead in his vehicle after emergency personnel pulled his SUV from the Illinois River in Ottawa Thursday.
The La Salle County Coroner's Office Friday morning identified Matthew W. Rosenstiel as the driver.
The white Chevy Blazer was pulled up from the Illinois River at Allen Park in Ottawa.
Multiple agencies searched the river after witnesses told police someone drove a vehicle into the Illinois River at about 2:11 p.m. Thursday.
Emergency crews pulled the SUV from the Illinois River near Allen Park at about 5:50 p.m. A coroner's office official responded to the scene about 6:30 p.m.
An autopsy has been ordered, Ottawa Detective Sgt. Kyle Booras said Thursday.
The park was closed as emergency and rescue crews worked Thursday. They deployed boats using sonar technology to search for the vehicle, which Ottawa firefighters and other agencies had identified its location in the water.
The incident is under further investigation by the coroner's office and Ottawa Police Department.