Police say they received a call Thursday at about 8 a.m. from a woman stating that her infant child was bleeding from his nose.
When officers arrived at the apartment on Alaska Avenue, they found the one-month-old bleeding from the face.
The infant was transported to North Bay Medical Center for medical treatment, where doctors determined that the child's nose had been severed and had possible head trauma.
As a result, the infant was transferred to Oakland Children's Hospital where doctors then determined that the infant had suffered a skull fracture, brain hemorrhage, and that one-third of the child's nose had been severed.
Police say their investigation found that the father, 18-year-old Fairfield resident Joshua Cooper, had bitten the child's nose off out of frustration from the infant's crying. Investigators are still trying to determine how the child sustained the other injuries.
The child is currently in stable condition.
Cooper was arrested and booked into the Solano County Jail.
Anyone with information is asked to call the Fairfield Police Department's Major Crimes Unit at 707-428-7600, the 24-hour Tip Line at (707) 428-7345 or Crime Stoppers at (707) 644-7867.