EDGECOMB, Maine — Police have arrested Matthew Grasser Jr., 21, for allegedly abusing a 20-month-old boy.

Police say the infant was brought to Miles Memorial Hospital in Damariscotta on Dec. 5 for an evaluation of a swollen elbow. It was determined that the child had extensive bruising to his face, torso and arms, and a broken arm below his elbow.

The Department of Health and Human Services relayed the information to the Lincoln County Sheriff’s Office.

According to the sheriff’s office, “there was a delay in reporting to law enforcement as there was some confusion as where the child was actually residing.”

On Dec. 8, the Spurwink Clinic in Portland determined the injuries were the result of physical abuse.

According to authorities, the child had been staying with his aunt and her boyfriend, Grasser Jr., in Edgecomb after being removed from his mother’s care by DHHS.

Grasser admitted to investigators that struck the child because he was crying.

Grasser was arrested and charged with aggravated assault. He was taken to the Two Bridges Regional Jail.

DHHS has returned the child to the care of his mother and maternal grandparents.