(CNN) Two men face murder charges in connection with last weekend's Cameo nightclub shooting, Cincinnati police Chief Eliot K. Isaac said.

Cornell Beckley, 27, was arrested Thursday afternoon. Deondre Davis, 29, is being treated for gunshot wounds and is listed in critical condition, Isaac told reporters Thursday.

Police believe more individuals may have been involved. They also plan to add charges to the two suspects as the investigation progresses.

One person was killed and 16 others were injured by gunfire early Sunday. Police identified the slain man as O'Bryan Spikes, 27.

Isaac said it was an altercation in the nightclub that deteriorated into a fight, which "escalated to individuals being able to sneak guns into the bar and shots being fired." Police have recovered 16 shell casings, but believe more shots were fired.

Mayor John Cranley said the city must "figure out a way to get the guns off the streets and teach people not to resolve disputes with guns."

Police offficers investigate the crime scene at a Cincinnati nightclub.

Jackie Davis, Deondre Davis' father, was by his son's bedside in the hospital when he learned he was one of the suspects. "We were so excited that they had (arrested) someone and to see my son's face come across was devastating," Davis told reporters outside the hospital. "I'm still puzzled on how my son is accused," he added.

Davis described his son as a "nice, well-rounded kid" who always smiles.

According to his attorney, Carl Lewis, Deondre Davis is unresponsive, sedated and on a ventilator and is expected to undergo surgery on Friday.

"He's innocent until proven guilty," Lewis said. The attorney mentioned he had represented Davis in the past for "minor matters," such as traffic charges for allegedly driving without a license.

It was not clear whether Beckley has an attorney. He is scheduled for arraignment Friday.

The shooting was not related to terrorism, authorities said. But Cranley said that made little difference to clubgoers.

"If you were in that bar or restaurant and people start shooting in a crowded room, what difference does it make to you what the motivation of the shooter was?" Cranley said. "We live in a city and a country where you should be able to go out and have a good time and not be terrorized by gun violence."

Cincinnati Police Chief Eliot Isaac addresses reporters after Sunday morning's fatal shooting.

'A lot of chaos'

Cameo is in the former home of a gay bar called Adonis, which closed in 2012.

It is in the city's East End area, on the Ohio River Scenic Byway near Cincinnati Municipal Lunken Airport, where it sits amid used auto parts yards and marinas.

"We, including myself, are all asking how this could have happened," Jay Rodgers, Cameo's owner, said in a statement. He pledged the club would "continue to cooperate with the police investigation and assist in any way in bringing the perpetrators to justice.

Cameo hires off-duty police officers for extra security. Two officers were stationed at the club's entrance and another two in the parking lot, authorities said.

Officers in those situations are allowed to provide security only outside the clubs, Isaac said. Clubs are responsible for their internal security.

To get in, clubgoers had been searched with an electronic wand to detect hidden weapons.

A man who was inside told CNN affiliate WLWT he heard the DJ calling for security, although the music hadn't stopped.

"It was just a lot of chaos, obviously, when the shots went off," Cincinnati Police Department Capt. Kimberly Williams said. "People (were) just trying to get out of harm's way."

To leave the club, some patrons had to flee past injured people on the floor.

Police found a "chaotic crime scene" as they looked for witnesses, many of whom took off when the shooting started, said Cincinnati Assistant Police Chief Paul Neudigate.

The packed parking lot and the crowds trying to drive away hindered fire rescue teams, Assistant Fire Chief Roy Winston said.

Members of the ATF and local police work at the Cameo nightclub Sunday.

"You had a mass group of people leaving the scene," Winston said.

Some of the injured drove themselves to area hospitals, police said.

One patient was treated for a gunshot wound and released from Anderson Hospital, said Nanette Bentley, hospital spokeswoman. Another person walked into West Hospital with a non-gunshot injury and was treated and released, Bentley said.

'Just going to have a good time'

Cranley, the mayor, said his city is "deeply saddened by this tragedy" and urged community members to work together.

Cincinnati Mayor John Cranley said his city is now one more community struck by "unacceptable" gun violence

"People were just going to have a good time and ended up getting shot," he said. "That is totally unacceptable."

He added, "This is a tragedy that has struck other communities and now it has struck Cincinnati. Our hearts are broken but our spirit is not."

The Cameo nightclub allows admission to anyone over age 18 on Friday nights. Saturday nights are for those who are 21 and above and promoted as "grown and sexy" night.

Cameo has a history of violent incidents, WLWT reported.

"We are aware of it. It (the club) has had some challenges in the past," Neudigate said.

Multiple assaults were reported at Cameo from 2014 to 2016, affiliate WXIX reported.</s>One person has been killed and at least 14 people wounded in a shooting at a nightclub in Cincinnati, Ohio, police have said.

The incident took place in the early hours of Sunday at Cameo Night Club, Cincinnati police department tweeted.

At least 15 people were shot at about 1am local time, the broadcaster WLWT-TV reported. It said several had life-threatening injuries, quoting the assistant police chief Paul Neudigate.

Hundreds of people were in the club at the time of the shooting, Neudigate reportedly said.</s>The Sunday morning shooting inside a Cincinnati, Ohio nightclub started when two groups of men got into a dispute and gunfire then erupted.

Police were called around 1:30 a.m.to the Cameo Night Club in the 4600 block of Kellogg Avenue on a report of a shooting.

Cincinnati Police Department Assistant Police Chief Paul Neudigate said there is no indication the shooting was linked with terrorism. There were several other people who were rushed to area hospitals with life-threatening injuries.

Police have not said whether anyone is in custody, and the investigation is ongoing.

Capt. Kimberly Williams told WCPO that police are having trouble getting witnesses to cooperate.

The incident is the worst mass shooting (for total number of victims) so far in 2017, according to Gunviolencearchive.com.

“You have innocent people shot, just for going out to have a good time”. The officers attempted to give CPR to the person who died. Authorities are now searching for more than one shooter in this incident.

No arrests have been made and city officials are urging the anyone with information to come forward. In fact, the club is also known to hire police for extra security, with two officers at the entrance and two in the vehicle park always present.

“Saturday night, it is a very young crowd”, Williams said.

Neudigate tweeted that there was only one reported shooter but that police were investigating whether others were involved.

Beck said it is concerning that the suspects are at large, and that at this point police appear to not have names or descriptions of those involved.

The parking lots near the nightclub were completely full, Franz said, which caused problems for first responders attempting to reach the shooting victims.

Police at this time do not believe the shooting was terrorism-related.

The University of Cincinnati Medical Centre admitted eight people injured in the shooting, one of them in critical condition, a spokesman said.

Ohio Governor John Kasich said on Twitter that he was “saddened to learn about the shooting” and offered the state’s assistance.</s>One person was killed and at least 14 people were wounded in a shooting at a nightclub in Cincinnati, Ohio, early on Sunday.

The shooting took place at Cameo Night Club, the Cincinnati Police Department said on Twitter.

A spokeswoman for the department would not confirm the shooting or provide any details.

At least 15 people were shot at about 1am, WLWT-TV reported on its website.

Several of them had life-threatening injuries, it reported, quoting Assistant Police Chief Paul Neudigate.

Hundreds of people were in the nightclub at the time of shooting, Neudigate said.</s>The scene outside the cameo Club where a gunman has killed one person and wounded 14. NEW DELHI: One person was killed and at least 13 people were reported wounded after a gunman opened fire in a Cincinnati, Ohio , nightclub in the wee hours local time on Sunday, reported WLWT5, a local TV station and the Cincinnati Police Department. Cincinnati police have confirmed that it is a homicide investigation but didn't say if anyone was in custody.

Start the conversation, or Read more at The Times of India.</s>One person is dead and multiple people are injured after an early morning shooting Sunday at a Cincinnati, Ohio nightclub, according to NBC affiliate WLWT.

Sgt. Eric Franz of the Cincinnati Police Department has told NBC News that at least 14 people were shot, at least one fatally, in the shooting at Cameo Nightclub. Franz said the victims were transported to four area hospitals. Police did not confirm any other details about the circumstances of the shooting.

Kelly Martin with the University of Cincinnati Medical Center told NBC News that the hospital had received 8 patients from an "incident" at the club. Martin did not confirm whether those patients were victims of gunshot wounds.

Please refresh for updates on this developing story.</s>Cincinnati nightclub shooting: What we know

One person was killed, 15 others were injured in the weekend shooting</s>CINCINNATI — Gunfire erupted early Sunday inside a crowded nightclub with a history of violence, killing one person and wounding more than a dozen others, authorities said.

No suspect is in custody, but there is no indication the shooting at the Cameo club was terrorism related, officials said.

Assistant Police Chief Paul Neudigate said in a tweet that there was only one reported shooter but that police were investigating whether others were involved. Police had earlier said "at least a couple of shooters" were involved.

Authorities believe a conflict began earlier in the day that led to the shooting, city manager Harry Black said in a news release. Authorities were interviewing witnesses and planned a news conference later in the morning.

Fifteen people were shot, police said. Some drove themselves to hospitals, and others were taken by ambulance.

Cameo has a history of gun violence, including a shooting inside the club on New Year's Day in 2015 and one in the parking lot that September, Black said.

A phone call to the club Sunday morning by The Associated Press went unanswered.

Capt. Kim Williams said there was "just a lot of chaos, obviously, when shots were fired."

"Saturday night, it is a very young crowd. We have had incidents here in the past, but this is by far the worst," she said.

Several officers were working security at the club; some performed first aid and tried to revive the person who died, police said.

A single body was removed by the coroner shortly after 6 a.m. The federal Bureau of Alcohol, Tobacco, Firearms and Explosives was also at the scene.

Among the injured, eight were being treated at the University of Cincinnati Medical Center, hospital spokeswoman Kelly Martin said. One person there was in critical condition. She had no details on the types of injuries or the ages of the victims.

Authorities asked anyone with information to come forward. Investigators were checking to see if surveillance cameras were working, Williams said.

The area is mostly industrial but also home to several nightclubs with a smattering of homes. A regional airport is nearby along the Ohio River. The area is fairly desolate at night, with the exception of the nightlife scene and 24-hour gas stations. The road where the club sits was easily cordoned off by a single police cruiser and officer at either end.

First responders had problems reaching the shooting victims because the parking lots were full, Sgt. Eric Franz told the Cincinnati Enquirer.

Ohio Gov. John Kasich said on Twitter that he was "saddened to learn about last night's shooting" and that he was offering the state's assistance.

Cameo's Facebook profile says it caters to college students on Friday nights, when anyone over 18 is allowed in, while Saturdays are "grown and sexy night" for ages 21 and older.</s>One person has been killed and at least 14 others injured at the Cameo Nightclub in Cincinnati, Ohio, local police report. The victims of the shooting have been taken to area hospitals as police interview witnesses.The shooting happened at about 2am local time on Sunday, WLWT report." who opened fire on clubgoers, as cited by AP.Security forces would not immediately report whether anyone was taken into custody over the shooting or what circumstances led to it.According to Assistant Police Chief Paul Neudigate, the incident was one of the largest he has worked on in his career of over 20 years in the force, the news outlet reported.He added that the Cameo Night Cluband that police are having some problems with gathering witness accounts."Many of them fled, unfortunately., but everyone that we can identify is being interviewed," he told WLWT.Hundreds of people were in the nightclub when the incident happened, the official noted.</s>(CINCINNATI) — Police say 15 people were shot and one person was killed when gunfire erupted at a Cincinnati nightclub.

WLWT reports that the shooting was happened about 2 a.m. Sunday at Cameo nightclub.

The victims were taken to four area hospitals.

Police have not said whether anyone is in custody, and the investigation is ongoing.

It wasn't immediately clear what prompted the shooting.
A shooting in Cincinnati, Ohio, kills one person and injures fourteen others.