An 18-year-old Spring Hill man accidentally ran over his friend with his car after he was allegedly assaulted on Saturday night at the Mariner Mobil Mart at Mariner and Northcliffe boulevards, the Hernando County Sheriff's Office said. Alex Leriche, 18, of New Hampshire, was flown by helicopter to Bayfront Medical Center, where he was treated and released , a hospital spokeswoman said. Adam Beairsto of Spring Hill and Leriche said they stopped at the Mobil to get a soda when Beairsto was accosted by a 17-year-old senior from Central High School, a report said. Beairsto said he was knocked to the ground beside his car. When Beairsto got up, he said he did not see Leriche and assumed his friend had gone for help. Beairsto said he pulled his car forward and felt the car run over something. He got out and found it was Leriche, who police said may have been knocked down by an unidentified man who had pulled into the Mobil. The case is under investigation.