INDIANAPOLIS -- A man was shot by police early Thursday morning on Indianapolis northwest side.

The incident happened in the 5900 block of Ann Marie Way around 1:00 a.m.

Indianapolis Metropolitan Police Department officers were originally called to a domestic disturbance at the home.

The wife told police said she had been in a disagreement with her husband and he had gone upstairs into another room.

Officers were talking to the man through the door when he told them he had a gun. He threatened the officers and himself, IMPD spokesperson Sgt. Kendale Adams said. The wife and three other people who were inside the house were immediately evacuated.

When the man opened the door, one of the officers fired a shot, striking him. A second officer used a Taser on him. Police have not said whether the man pointed a gun at the officers before the shot was fired.

"Obviously, we work in a rapidly changing environment," Adams said. "These are very tense situations and officers have to make very split-second decisions and those are very difficult decisions. When we do make those decisions, that's why we have this investigative process that plays out to make sure that those decisions were the right decisions."

Police have not found a weapon, Adams said.

The man sustained a head wound and taken to Eskenazi Hospital to be treated for his injuries. He was in serious, but stable, condition. He is expected to survive.

Adams said the man will be detained to determine his mental stability.

"We have, as a department, really taken on mental health crisis," Adams said. "We have our Crisis Intervention Team, our Crisis Negotiation Team and we actually have a pilot program on the east side where officers are dealing specifically with mental health. Alone last year, we took over 3,000 runs, particularly in the east district surrounding mental health."

No officers were injured. The shooting remains under investigation by IMPD.