Infant, 3-year-old girl, 1 adult killed in I-10 westbound crash in Casa Grande

The Arizona Department of Public Safety says they are investigating a single vehicle fatal collision.

The crash happened on westbound Interstate 10 at Mile Post 186, near State Route 387 at 4:00 a.m. DPS says a vehicle with South Carolina license plates was heading westbound on I-10 when for an unknown reason, the vehicle went off the roadway into the media. The driver over corrected and the vehicle rolled.

"The adult male driver, a 3-year-old female, and a male infant were deceased on scene. An adult female, along with a 5-year-old male, 13-year-old female, and an infant were flown to a valley hospital. The infant has life-threatening injuries," stated DPS' Bart Graves.

Just before 10:30 a.m., The Arizona Department of Transportation stated the westbound and eastbound lanes of I-10 were open again. Earlier in the day, westbound traffic was being taken off at McCartney Road.

DPS says they are looking into fatigue as a possible factor in the crash, which remains under investigation.

No names have been released in this case.

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