PIERCE COUNTY, Wis. (RELEASE FROM PIERCE CO. SHERIFF'S DEPT.)-- On Sunday, August 17th 2014, at approximately 2:29 p.m., the Pierce County Sheriff's Office was notified of a Jet Ski accident with injury on the Saint Croix River. A Jet Ski operated by Scott D. Czaplewski, 50 years old from Eagan, Minnesota was traveling northbound on the Saint Croix River when his Jet Ski started malfunctioning. Czaplewski re-fueled the Jet Ski and after attempting to start the machine, the Jet Ski exploded and propelled Czaplewski and his passenger Nichole Ashley Montez, 20 years old from S. St. Paul, Minnesota into the air. Czaplewski was uninjured in the explosion and Montez sustained injuries after she landed. Montez was transported to River Falls Area Hospital by River Falls Area Ambulance Service with undetermined injuries. The Pierce County Sheriffs Office was also assisted by the River Falls Fire Department and the Washington County Sheriffs Office. This accident is still under investigation by the Pierce County Sheriff's Office.