CNN
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A 26-year-old rookie Louisville police officer – who graduated from the police academy just 10 days ago – was hospitalized after being shot in the head while responding to a mass shooting Monday at a downtown bank that left five people dead and others injured, police said.

Louisville Metro Police Department Officer Nickolas Wilt was in critical but stable condition at a hospital and underwent brain surgery, Jacquelyn Gwinn-Villaroel, the interim chief of the police department, said Monday afternoon.

He was struck in the head during a shootout in the bank that left the gunman dead, she said during a news conference.

Wilt was new to the department, having graduated from the police academy on March 31, the chief said.

“I just swore him in, and his family was there to witness his journey to become a police officer,” Gwinn-Villaroel said.

The shooting at Old National Bank broke out just after 8:30 a.m. police said, about 30 minutes before the bank opens to the public.

Officers responded within three minutes of being dispatched and found the gunman was still firing inside the bank, authorities said. The shooter was identified by authorities as Connor Sturgeon, a 25-year-old employee.

Another officer was also injured in the attack and was hospitalized after being hit in the elbow, the chief said.

The five victims, all between the ages of 40 and 64, have been identified as Joshua Barrick, Deana Eckert, Tommy Elliott, Juliana Farmer and James Tutt. The victims included a close friend of Gov. Andy Beshear.

Louisville Mayor Craig Greenberg visited Wilt at the University of Louisville Hospital, telling CNN Wilt “made it through surgery and he’s in serious condition at the hospital right now but he is in great hands.”

Greenberg had handed Wilt his graduation diploma from the police academy, he said.

“I paid a visit to his academy class that was there at the hospital offering to support him, offering the support to he and his family today,” the mayor said.