A driver died in the hospital after authorities say he lost control of his car and crashed into a guardrail where he was found unconscious in Round Lake. The Greater Round Lake Fire Protection District and Round Lake Police Department responded around 11:40 a.m. on September 6 to Cedar Lake Road and Hart Road in Round Lake for a vehicle crash with injuries. Round Lake Police Chief David Prus said the single-vehicle crash occurred in the intersection. A Chevrolet Cruze was driving eastbound on Hart Road and proceeded through the intersection at Cedar Lake Road. It appeared the driver suffered a medical event that caused him to lose control of the car, Prus said.