A Medford baby is in a Portland hospital with head injuries and her father is in Jackson County Jail on suspicion of causing her injuries by shaking.

A Medford baby is in a Portland hospital with head injuries and her father is in Jackson County Jail on suspicion of causing her injuries by shaking.

Medford police arrested Luis Enrique Isordia-Benavides, 18, Sunday on charges of third-degree assault and first-degree criminal mischief after hospital staff notified police about a baby girl with suspicious injuries, Medford police Lt. Tim Doney said.

Medical staff at Rogue Valley Medical Center called police at about 7:40 a.m. Sunday to report that they were treating a 20-day-old girl with bleeding on the brain from what they believed was "non-accidental head trauma," Doney said.

The injuries were consistent with the baby being shaken several times in her short life, Doney said. She was flown to Portland for treatment.

A detective interviewed the child's parents, who are both 18. After the investigation, Isordia-Benavides was arrested and lodged in the county jail. He also is suspected of being in the country illegally and is being held without bail.

— Anita Burke