LAFAYETTE, Ind. (WLFI) — Lafayette police are investigating a dog attack that killed an infant.

Police were called to the 1900 block of Greenbush Street Saturday about 11:30 a.m. That is near Market Square.

When police arrived, officers found a pit-mixed breed dog standing over a 1-month-old boy. Police said Officer Neil Cain was forced to shoot and kill the dog to provide aid to the boy.

The child was identified as Julian Connell. He died at the hospital.

The Tippecanoe County Coroner's Office said a preliminary autopsy showed Connell died from multiple sharp force injuries due to dog bites.

Police said prior to the attack, the dog had been fighting with a beagle-mix inside the home. The beagle-mix was taken to the Purdue Vet Hospital for its injuries.

Neighbors say they were shocked to hear the news.

"There were cop cars everywhere and I was like, 'what's going on?' Then my fiancé came home and another neighbor came over and started putting two and two together," said neighbor Helen Tracy. "It was shock and heartbreak."

Lt. Matt Gard said both the infant's mother and teenage brother were inside the home at the time of the attack. The brother was the one who called 911.