Monona Police Department is searching for a vehicle following a crash with serious injuries on westbound U.S. Highway 12 in Wisconsin. Police said the collision occurred Tuesday morning. According to the police investigation, a white Jeep Renegade was traveling westbound in the Flex Lane behind the other vehicle at about 7:10 a.m. Police reported that the Jeep moved into another lane and then returned to the Flex Lane, after which the vehicles collided. The impact caused the other vehicle to roll across several traffic lanes, police said. Its occupant suffered serious injuries that were not considered life-threatening and was transported to a hospital by Monona EMS. Authorities said the Jeep continued traveling and did not stop or contact police. The investigation remains ongoing. What Makes This Incident Different This report involves both a rollover and an unidentified driver. A vehicle rolling across multiple lanes can create a broad area of potential evidence and may expose the injured person and other roadway users to additional danger after the initial contact. The fact that police are looking for a white Jeep Renegade also makes prompt identification important. Monona Police said the vehicle may have damage in the rear passenger-side area. Until the driver and vehicle are located, the available evidence will determine what occurred and whether other sources of insurance coverage may be relevant. Questions Investigators May Examine Investigators may examine how each vehicle was traveling before the collision and whether the reported lane movements can be confirmed. They may also consider whether roadway video, witness accounts, or physical evidence helps establish the sequence of events. Because the Jeep reportedly left the area, investigators may seek to determine who was driving and whether the vehicle can be identified through its reported description and damage. Records may help clarify when the crash was reported, what responding personnel observed, and whether there were witnesses who saw either vehicle before or after the collision. The evidence—not assumptions—will determine the circumstances of the crash. Evidence That May Need to Be Preserved For a serious-injury crash on a multi-lane highway, preserving information early can matter. Depending on what is available, useful materials may include: - Police reports, supplemental investigative materials, and dispatch communications. - Photographs of the injured person's vehicle, including rollover damage and any contact areas. - Photographs or inspection records concerning the white Jeep Renegade if it is located, including the reported rear passenger-side damage. - Video from traffic cameras, nearby businesses, or other sources that may have captured the roadway. - Statements and contact information from people who witnessed the collision or saw either vehicle afterward. - Medical records and bills documenting the injuries, hospital transport, treatment, and recovery. - Records concerning missed work or other financial losses connected to the injuries. Evidence can disappear quickly, particularly video footage and vehicle-condition evidence. A lawyer can send preservation requests where appropriate while allowing the official investigation to continue. What Families Should Know Wisconsin injury claims commonly depend on proof of what happened, the nature of the injuries, and the losses caused by the event. Medical care should remain the priority. Keeping treatment records, bills, photographs, and notes about how injuries affect day-to-day activities can help document a claim later. When a driver has not been located, it may be important to review all potentially applicable insurance policies promptly. Depending on the policy language and facts, uninsured-motorist coverage may be an issue worth evaluating. Families should not assume coverage exists or accept an insurer's position without first understanding the policy and the evidence. Deadlines can apply to injury claims in Wisconsin, and the appropriate deadline can vary with the facts and parties involved. Speaking with an attorney early can help a family understand potential deadlines, preserve information, and avoid unnecessary pressure while the police investigation proceeds. How Dunk Law Can Help Dunk Law can help people seriously injured in Wisconsin roadway crashes assess the available evidence, communicate with insurers, and pursue information that may identify an unknown driver. Our team can evaluate the police materials, vehicle evidence, medical documentation, and applicable insurance coverage while treating the client’s recovery with care. If your family is dealing with the aftermath of a serious crash on U.S. Highway 12 or another Wisconsin roadway, Dunk Law can discuss the circumstances in a confidential consultation and explain practical next steps. Related Dunk Law Resources - All practice areas This post is based on publicly available news reports and is provided for general information only. It is not legal advice.