The man shot and killed at Cincinnati's Cameo nightclub early Sunday morning was named by police during a news conference.
Obryan Spikes, 27, died in the shooting. At least 15 others were shot, and one of those people is in "extremely critical condition," Cincinnati police Chief Eliot Isaac said.
There were several others who were injured, as well.
The shooting was reported just after 1 a.m. at Cameo Night Club on Kellogg Avenue in Cincinnati's East End. Police believe that multiple people fired shots. No arrests have been made.
"The conflict is believed to have begun between specific groups or individuals earlier in the day, escalating and ultimately leading to this tragedy occurring at the nightclub," Cincinnati City Manager Harry Black said.
Some of the victims were taken to area hospitals via ambulance, and others arrived via their own conveyance, police said.
Assistant Police Chief Paul Neudigate said that several of the victims have life-threatening injuries.
“We are in the middle of a very horrific situation that occurred at the nightclub with multiple victims,” Neudigate said. “It’s going to be a long night for our homicide units to investigate.”
Neudigate said that police do not suspect that this was an act of terror.
Neudigate added that hundreds of people were inside of the nightclub at the time of the shooting, and called it a “chaotic crime scene.” Police believe multiple shooters fired shots inside of the nightclub.
“Many of them fled, unfortunately. Many of the witnesses fled, but everyone that we can identify is being interviewed,” he said.
One witness told WLWT News 5 that he heard the club's DJ call for security about 10 minutes before the shooting.
Surveillance cameras were inside the club at the time of the shooting, police said.
Neudigate added that Sunday morning’s shooting was one of the largest shooting cases that he has worked in his 27-plus years with the department.
Of nine victims taken to University of Cincinnati Medical Center, police said two people are in critical condition and seven people are stable. Five of the seven stable patients are expected to be released soon.
Two people were treated and released from Bethesda North Hospital, and two more are at Christ Hospital in stable condition. One person was treated and released at Mercy Anderson and another was treated and released at Mercy West.
Cameo nightclub has had several issues in the past, authorities said. The club allows admission to anyone over the age of 18.
“We are aware of it. It has had some challenges in the past,” Neudigate said.
There were two shootings at the nightclub in 2015: one on New Year's Day, when someone was shot in the foot, and another in September, when a shooting victim was found in the parking lot.
Police have not said whether anyone is in custody, and the investigation is ongoing. The Bureau of Alcohol, Tobacco and Firearms is helping Cincinnati police with this investigation.
Cincinnati restaurateur Jeff Ruby is offering a $10,000 reward for information leading to the arrest and conviction of the person responsible for the shooting death, he tweeted Sunday.