At 8:25 Am on July 25th multiple calls went into 911 dispatch reporting a solo vehicle jeep roll over on Highway 18 at Mile Marker 61 in Big Bear. Cal Fire 3558 from Baldwin Lake Station and Medic ambulance 282 Big Bear City arrived on scene to a solo occupant who self extricated. Patient declined medical Transport. According to the Driver of the jeep a grey four door sedan was attempting to get his attention by waving arms and yelling out window claiming he had a fuel spill then passed over double yellows, cut him off then slammed on brakes causing him to lose control and over turn coming to rest 10 feet off the roadway. The occupant of the grey sedan stayed on scene until chp arrived. The exact circumstances are unknown at this time and will be handled by California Highway Patrol.