Police Officer Bitten by Pit Bull in Detroit

DETROIT - Witnesses say two groups of young men faced off in a gunfight in northwest Detroit and several shots were fired. We don't believe anybody was struck. Police arrived and a pit bull was released. The pit bull bit one of the police officers. That is when the officer shot and killed the dog.

"I saw six to eight people ... standing on both (sides) of the street and in the street aiming their hands at each other," said a witness. "Then we (started) hearing the sirens ... There were gunshots. I saw the end of the barrel shooting across the street."

"I understand that the dog lunged at a policeman," he added. "The dog was lunging at the policeman, so they shot it."

We're told two officers were conveyed to Sinai-Grace Hospital and are not in life threatening condition. One has dog bites to his leg. The other has an injured leg, and it's not clear how he was hurt.

FOX 2's Ron Savage saw four men being taken into custody. Police are continuing to investigate this matter.