UPDATE: (Oct. 19, 3:20 p.m.) -- UHP confirms four adults killed in a crash between a heavy-duty dump truck and pick-up truck.
Investigators are saying there is reason to believe impairment was a contributing factor to the crash with open containers and prescription pills found on the scene.
(KUTV) -- Utah Highway Patrol is responding to a crash with multiple fatalities after a semi and a Jeep collided on state Route 40 at mile marker 10 in Wasatch County.
The accident was reported at approximately 12 noon, Friday.
Motorists may expect delays in the area.