UPDATE (January 18, 2017 3:55 p.m.): The driver of the vehicle who hit a big rig truck Tuesday night has been identified as 57-year-old Donna Elizabeth Abney. She was pronounced dead at the scene.

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A portion of Highway 166 near Basic School Road just east of Maricopa is closed as CHP officers investigate a deadly crash.

According to CHP, three vehicles were involved. At about 6:30 p.m. a blue sedan collided head-on with a semi truck. A third car was also involved, but it is unclear how.

It is unknown at this time how many people were in each vehicle and who was killed.