(KSL News) -- Troopers say one car caused a six-car pile-up on Interstate-215 today.
They say a Honda Civic was going too fast through a construction zone and the driver wasn't playing close enough attention.
When the driver tried to merge, the Honda hit one truck, then another truck hit, then three other vehicles slammed into each other.
Four people were in the Honda. Three were flown to the hospital in critical condition. The other was hospitalized in serious condition.