FAIRFIELD (CBS SF) — An 18-year-old Fairfield man has been arrested for biting the nose off of his infant son, police said.

Fairfield Police said they received a phone call from a hysterical female saying her infant child was bleeding from its nose.

Doctors at North Bay Medical Center determined the infant’s nose had been severed and the child had possible head trauma, according to the police press release.

The infant was later taken to Oakland Children’s Hospital where doctors determined the 1-month-old infant had a skull fracture, a brain hemorrhage, and a third of the child’s nose had been severed off, according to the release.

Investigators determined the father, Joshua Cooper, had bitten his son’s nose off out of frustration over the infant crying, police said.

It was unclear how the child suffered the fractured skull and brain hemorrhage.

Cooper was arrested and booked into Solano County Jail in Fairfield for child cruelty and aggravated mayhem, police said.