NINE PEOPLE HAVE BEEN KILLED -- IN TWO, HOLIDAY WEEKEND HEAD-ON CRASHES -- IN UTAH.

A HEAD-ON COLLISION -- OUTSIDE MONTICELLO, IN SOUTHEASTERN UTAH -- KILLED FIVE PEOPLE INITIALLY... AND A SIXTH DIED, MONDAY MORNING. 

POLICE SAY A VAN, TRYING TO PASS ANOTHER VEHICLE, STRUCK AN ONCOMING SPORTS CAR.

ONE VAN PASSENGER WAS STILL ALIVE -- BUT IN EXTREMELY CRITICAL CONDITION -- EARLY MONDAY AFTERNOON.

MEANTIME, ON I-80 NEAR WENDOVER, POLICE SAY A WRONG-WAY DRIVER RAN HEAD-ON INTO WOMAN, KILLING HER... AND HER TWO DAUGHTERS.