Officers responded to a report of a domestic assault with a weapon at the 1000 block of W Skyline Parkway.

When squads arrived on scene they developed a probable cause for a felony-level domestic assault. Officers located a male suspect in the home and attempted negotiating with him for his arrest.

After approximately an hour of negotiations, the suspect fired at officers, striking Haller, causing a non-life threatening injury and killing K-9 Haas.

"It's difficult when you have a loss like this. Even though it's an animal, we still get very attached to that animal," said Duluth Police Sgt. Kelly Greenwalt. "We train for this kind of thing, and when you train for this type of thing, it kind of forces you to mentally prepare for what if it really happens," he said.

An officer returned fire and once police gained access to the room where the male suspect was located they found him deceased.

The suspect has not yet been identified, but police say he was the suspect of the domestic assault.

It is not yet clear how the suspect actually died, or what the exchange was between officers and the suspect.

Police say no arrests have been made, and that the other person involved in this case was in a relationship with the shooter, and is uninjured.

Duluth Police Chief Mike Tusken said the following in a Facebook post regarding K-9 Haas:

"As a community, let’s put our arms around and show our support for Officer Aaron Haller, his dedicated K9 partner Haas, and our DPD family to find peace in the days ahead.

Officer Haller is home resting with family and Haas will forever Rest In Peace as a hero who gave the ultimate sacrifice keeping his police officer partners safe."

The Minnesota Bureau of Criminal Apprehension will be conducting this investigation.