Four people are dead and eight are injured after a 12-vehicle collision in Arizona.
According to the Arizona Department of Public Safety (AZDPS), state troopers responded to reports of a collision on Interstate 10 near milepost 89 (west of Tonopah), shortly before 1 p.m. local time on Saturday, March 1. The department said that "numerous vehicles caught fire following the collision."
At this time, state troopers believe that the collision involved four passenger vehicles, six commercial motor vehicles, a van and a recreational vehicle towing a trailer, per the AZDPS.
In addition to the four confirmed fatalities, two people are currently in critical condition and receiving "life-saving treatment."
An additional person was admitted to the hospital for "precautionary treatment," and five others have been treated and released, according to the AZDPS.
The department said that troopers are still working to contact the families of all of those involved in the collision and therefore will not be releasing the names of the victims at this time.
The AZDPS also shared that troopers are investigating whether "blowing dust" may have reduced visibility on the roads and played a "significant factor" in the accident.
PEOPLE reached out to the AZDPS for comment on March 2, but did not receive an immediate response.
FOX Weather reports that the National Weather Service office in Phoenix issued several dust storm warnings around the time of the crash.
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The outlet also reported that in a news conference on March 2, authorities said they believe there was an initial collision, followed by one or more secondary collisions, which resulted in additional fatalities and injuries.
According to local news outlet Fox 10 Phoenix, the Arizona Fire & Medical Authority said that more than 20 units responded to the crash and two patients were flown by helicopter to the hospital.
PEOPLE reached out to the Arizona Fire & Medical Authority for comment but did not receive an immediate response.