(Darke County, OH)--A police chase ended with a fatal crash Monday night in Darke County.  It began when a deputy noticed an SUV speeding as it left Ansonia at 8:15 Monday night.  The deputy tried to catch up as the vehicle fled at up to 124 miles per hour.  The SUV then crashed into an oncoming car on State Road 47.  The female driver of the oncoming car was conscious with injuries.  A female passenger in the fleeing SUV was ejected and pronounced dead at the scene.  The male driver of the SUV was detained.  Charges are pending.  Identities have not been released.