A gunman dressed in a business suit opened fire inside a bank in downtown Cincinnati early on Thursday, killing three people and wounding others before being shot and killed by police, authorities said.

The shooter began firing inside a loading dock at the Fifth Third Bank headquarters near Fountain Square, police said. He then entered the lobby where he exchanged fire with law enforcement.

“He was actively shooting innocent victims, it appears, and our officers were able to kill him and stop the threat very quickly,” Cincinnati Mayor John Cranley told a news conference.

The city’s police chief, Eliot Isaac, said the suspect was Omar Enrique Santa Perez, 29, of North Bend, Ohio, a Cincinnati suburb. He said the shooter, who fired a 9-millimeter semi-automatic pistol during the incident, was not a former or current employee of the bank.

Investigators have not identified a motive for the shootings, Issac said. A search was conducted of his apartment, he said.

Read more in Reuters.