A Lac du Flambeau man was arrested on his seventh driving offense on Saturday. Troopers from the State Patrol’s Wausau Post responded at about 1:25 a.m. to a report of a single-vehicle crash near mile marker 195 on Highway 51 in Marathon County. The car was found in the ditch and the driver, 53-year-old Daniel Shane Sero showed signs of impairment. After a field sobriety test, Sero was arrested for DUI, his seventh such offense. He was also cited for possession of drug paraphernalia. No additional information regarding the crash and charges has been released.