The death toll in the Louisville bank shooting has risen to five, according to a verified tweet from the Louisville Metro Police Department.

[Previous story, published at 8:52 p.m. ET]

A 25-year-old bank employee opened fire at his workplace in downtown Louisville, Kentucky, on Monday morning and livestreamed the attack that left four dead and nine others injured, authorities said.

The gunman was identified as Connor Sturgeon, an employee at Old National Bank, according to interim Louisville Metro Police Chief Jacquelyn Gwinn-Villaroel. He was killed by police after a shootout with authorities.

The four victims were identified as Joshua Barrick, 40; Juliana Farmer, 45; Tommy Elliott, 63; and James Tutt, 64, the chief said. Gov. Andy Beshear said Elliott, a senior vice president at the bank, was one of his closest friends.

Of the nine people injured, three are hospitalized in critical condition, including a 26-year-old police officer who graduated from the police academy just 10 days ago and was shot in the head. Three of the injured are in non-critical condition and three have been released, the chief said. Five of the nine people injured had gunshot wounds, a hospital spokesperson said.

The mass shooting began at the Old National Bank on East Main Street just after 8:30 a.m. police said, about 30 minutes before the bank opens to the public. It happened during a morning employee meeting, with some appearing in person and others virtually, Rebecca Buchheit-Sims, a manager at the bank, told CNN. She watched from her computer as her coworkers were gunned down.

Officers got to the bank within three minutes of being dispatched and found the shooter was still firing, Louisville Metro Police Deputy Chief Paul Humphrey said. Officers got into a shootout with the gunman, killing him, Gwinn-Villaroel said.

Mayor Craig Greenberg thanked the “brave and heroic” first responders for their actions. “Without a doubt their actions saved lives,” he said.