Editor's note:A previous version of this story misstated the condition of one of the dogs. All three dogs are alive. This version is correct.

Three dogs fatally mauled a 9-year-old girl Monday afternoon on Detroit's west side.

Police arrested the dogs' owner, a 33-year-old man, following the 4 p.m. attack in an alley between the 6000 blocks of Central Avenue and Florida Street.

Police were still trying late Monday to determine what happened.

"When we first got on the scene, the girl was laying in the alley, and the father was performing CPR," Detroit Deputy Fire Commissioner Dave Fornell said. "Our first arriving unit jumped in and started CPR.

"At that point, the neighbors were shooting at the dogs. We were performing EMS under gunfire."

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One dog was struck by a bullet but survived, according to Tamekia (Ashford) Nixon, Director of Communications for the Detroit Health Department.

Detroit Police Cpl. Dan Donakowski said at one point, someone threw a brick in an effort to stop the attack.

CPR continued in the ambulance on the way to the hospital. But the girl was pronounced dead after she arrived, Fornell said.

"She suffered severe traumatic injuries," he said.

Initial reports said the girl and another child were riding their bicycles when the dogs attacked. But Donakowski said later it was unclear whether the girl was with someone else or alone.

Donakowski described the dogs as pit bulls. Detroit Animal Care and Control is involved in the investigation.

Fornell said late Monday that some of the first responding firefighters and EMS personnel were receiving trauma counseling.

Contact Ann Zaniewski at 313-222-6594 or azaniewski@freepress.com. Follow her on Twitter: @AnnZaniewski.