Two people died and four were critically injured when a tractor-trailer ran a stop sign and slammed into an S-U-V near Guymon.
State Troopers say the accident happened on a Texas County road late Sunday afternoon.
John Blagg and Xander Glover of Guymon died in the crash.
Troopers say the two were passengers in the SUV when the truck slammed into the passenger side.
The driver of the SUV, plus six and sever year old boys, as well as a fourth person, are in critical condition at an Amarillo Hospital.