Waupaca Police have now released the names of those injured in a single vehicle crash on the city’s far northeast side early Sunday morning. Police Chief Brian Hoelzel says 20 year old Clayton Kluck of Iola was driving the car that left County Hiway “E” just north of Oak Street and entered the east ditch, and rolled over around 1:45 a.m. Passengers in the vehicle included 20 year old Easton Meverden of Manawa, 22 year old Anthony Meverden of Iola, 22 year old Toni Grawvunder of Ogdensburg, and 24 year old Sheyann Fletcher of Plover. Hoelzel says Kluck and one of the passengers was flown to ThedaCare Regional Medical Center in Neenah in critical condition, while the three other passengers suffered non-critical injuries, and were transported by ambulance for treatment. The crash remains under investigation.