The north bound lanes of I-94 are closed this morning at Racine County Road K due to a rollover accident.  According to our reporters on the scene, a tanker truck has rolled onto its side and is blocking portions of the north and west bound freeway.   The semi’s tractor is on its side in the median with the tank-trailer on its side in the roadway.   The accident happened just before 6 o’clock this morning.   North bound traffic is being diverted onto County Road K and then directed northward on the east frontage road to County Road G where it can then get back onto I-94.