CENTENNIAL (3TV/CBS 5) -- Four people are dead after a wrong-way driver collided head-on with another vehicle early Wednesday morning on Interstate 10 west of Centennial, according to the Arizona Department of Public Safety.
DPS says a wrong-way driver was reported eastbound in the westbound lanes of I-10 near milepost 64 just after 1 a.m.
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As troopers and La Paz County deputies were responding, the wrong-way vehicle, a Nissan pickup, collided head-on with a 15-passenger Ford van near milepost 68.
Both vehicles caught fire after coming to a rest in the westbound lanes.
"This is something that our troopers who were there investigating will never forget," said DPS Trooper Kameron Lee.
DPS said the wrong-way driver and all three occupants in the Ford van were pronounced dead at the scene. Their identification has not been released yet.
Officials say all the crash victims were badly burned.
"One of the hardest parts about this is we have no way to really identify anyone," Lee said.
DPS said no evidence was found at the scene that indicates either vehicle braked prior to the collision.
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"We don't know the exact speeds, but two heavy vehicles, coming into contact with each other at full speed, the impact is huge and devastating," Lee said. "Both vehicles caught fire because of this high impact, and now four people are gone."
DPS says an alcoholic beverage container was located among the debris. It is unclear at this time if impairment or speed were a factor in the crash.
The westbound lanes of I-10 were closed at Salome Highway as the investigation was conducted. It has since reopened.
UPDATE: I-10 westbound has reopened at milepost 68 near Centennial. The closure was due to a serious crash. #aztraffic— Arizona DOT (@ArizonaDOT) March 27, 2019
To recap: A serious crash has closed westbound I-10 at milepost 68 (near Centennial). All traffic must leave the freeway at Exit 81 (Salome Highway). FYI: There's already a growing backup in the area. #aztraffic pic.twitter.com/pFYIFxVs26— Arizona DOT (@ArizonaDOT) March 27, 2019