A Chesterton woman suffered head trauma when her car was involved in a hit and run causing her vehicle to roll over four times Tuesday morning. Preliminary investigation by Master Trooper Dwayne Halliburton revealed at approximately 6:22 a.m., on I-80/94 west bound at Ripley Street, a Ford Explorer, driven by 39 year old Melissa Long, of Chesterton was in the left lane when a white Kia who was in the middle lane attempted to change lanes to the left. The Kia sideswiped the Ford causing the Explorer to lose control. The Ford went off the roadway into the concrete median barrier wall head-on and then rolled over approximately four times. Her passenger, a 28 year old male from Chesterton, was not hurt. Long had head trauma and was transported to North Lake Methodist Hospital. The white Kia never stopped and continued west bound. It should have damage to its right rear. No other identification (driver or license plate) is known. The left lane was closed for up-righting and towing of the vehicle and removal of the injured. The lane was reopened at approximately 7:40 a.m.