Highway Patrol troopers are attempting to stop a vehicle that is traveling in the opposite direction of traffic on the shoulder of I-70 in Lafayette County.  A spokesperson for the Highway Patrol said the driver is heading east toward Concordia on the westbound side.  The vehicle was last seen between Odessa and Concordia at mile marker 48, which would be about one mile prior to the Higginsville junction.  Drivers are being asked to be on high alert as troopers pursue the vehicle.