A Des Moines man is being treated for serious injuries after he and his motorcycle were hit and pinned underneath an SUV. Police Sergeant Paul Parizek says it happened just before noon Wednesday on Fleur Drive, southwest of downtown Des Moines. The motorcycle and SUV were both southbound and shifting lanes to pass a Des Moines Waterworks vehicle that was stopped on the roadway for maintenance work. “We don’t why just yet, we’re looking at maybe mechanical error or operator error, but according to witnesses the SUV accelerated pretty rapidly as the motorcycle was slowing,” Parizek explained. “It struck the motorcycle from behind and it swept the motorcycle and the driver of the bike underneath the SUV. It continued on, dragging him, about 250 feet down this road.” Rescue crews arrived to find the motorcyclist, 44-year-old Louis Kueh trapped underneath the Chevy Equinox. “Firefighters did some remarkable work…it was very impressive to watch,” Parizek said.