Officials are investigating a 4-vehicle collision that shut down the eastbound lanes of Interstate 10 at 7th Avenue on Sunday evening.
According to the Arizona Department of Public Safety, one of the involved vehicles fled from the scene.
The Phoenix Fire Department said one person was trapped and was extricated out of the vehicle.
A man, two women and a child, age unknown, were taken to the hospital for treatment of their injuries; the severity of said injuries is unknown at the time.
DPS says one of the involved vehicles was described to them as "speeding and traveling in and out of traffic" prior to the collision.