TUCSON, Ariz. - Two Tucson Police officers were shot Thursday morning.

Officers were serving an aggravated assault warrant in an apartment in the area, and gunfire was exchanged.

Both officers were taken to Banner University Medical Center, sources confirmed.

One of the officers is in the intensive care unit in critical but stable condition after undergoing surgery.

The other officer is alert and talking to family and other officers. He may be released today.

The officers were members of a unique squad specializing in hunting down dangerous criminals. Both officers have been with TPD less than 10 years. Police Chief Chris Magnus said the officers knew the suspect.

"My understanding the officers were familiar with the suspect they were aware of an arrest warrant that's why they were trying to make the arrest this morning," he said.

The suspect was shot and killed by the officers. Magnus said the suspect is 28 years old.

Names of the officers and the suspect have not been released.