One person was killed and 14 injured after gunfire erupted inside a packed nightclub in Cincinnati, Ohio, just after 1 am on Sunday morning, with the shooter said to still be at large.

Update: Cameo Night Club 15 gun shot victims, 1 deceased. Homicide unit and all available resources are being utilized. Next update after 11 — Cincinnati Police (@CincyPD) March 26, 2017

The motive was unclear, but Cincinnati Assistant Police Chief Paul Neudigate said on Twitter that "there are no indications this incident is terrorism related." The shooting took place around 1 a.m. when hundreds of people were inside the Cameo Nightlife club, which the Cincinnati Police Department said has had "multiple problems" in the past.

The University of Cincinnati Medical Center admitted eight people injured in the shooting, one of them in critical condition, a spokeswoman told NBC News. A representative of the hospital could not be reached immediately for comment.

Cameo Nightlife's Facebook page says it features "College Friday's" for students 18 and older and "Saturday's 21+ grown and sexy night." The club, a large single-story structure, is a 7-mile (11 km) drive from downtown Cincinnati near the southeast corner of the city, the heart of the second largest metropolitan area in Ohio with more than 2 million residents.

All victims have been transported from the scene, more victims are arriving at local hospitals and fire stations, unknown total number pic.twitter.com/p66nOzalHs — Cincinnati News (@CinciNews) March 26, 2017

"At this point it's unclear exactly what instigated the shooting," Captain Kimberly Williams said at a televised briefing. "Just a lot of chaos when the shots went off."

The shooting comes less than a year after a gunman opened fire at a gay nightclub in Orlando, Florida, killing 49 people. It was the deadliest mass shooting in U.S. history.

Police initially said they believed at least two shooters were involved in Cincinnati, but later Neudigate said in a Twitter message that there was only one reported gunman, though police were still trying to determine if there were others.

Medic units lining up to take victims from inside the club, at least one DOA on scene pic.twitter.com/IddEHPHKah — Cincinnati News (@CinciNews) March 26, 2017

Hours after the shooting, the suspect was still at large, and police did not have a good description, in part because witnesses were reluctant to cooperate, Williams told WCPO.

"We are in the middle of a very horrific situation that occurred at the nightclub with multiple victims," Neudigate told NBC News. "It's going to be a long night for our homicide units to investigate this incident, but right now things are stable."

Several of the victims in Cincinnati had life-threatening injuries, WLWT-TV reported on its website, quoting Neudigate, who said hundreds of people were in the nightclub at the time of shooting.