GALLUP, N.M. (AP) -- Authorities say an Arizona woman is dead after a rollover crash in New Mexico. New Mexico State Police responded to the accident on Interstate 40 east of Gallup shortly after 4 a.m. Wednesday. Police say 21-year-old Susan Mendez of Phoenix apparently lost control of the car she was driving and crossed both lanes of the freeway before the car rolled over several times. They say Mendez wasn't wearing her seatbelt and was ejected from the vehicle. She was declared dead at the scene. Police say a 1-year-old boy was in a baby seat, but sustained severe injuries. He was flown to University of New Mexico Hospital. An adult passenger was taken to a Gallup hospital for treatment. Police say alcohol doesn't appear to be a contributing factor in the rollover.