Multiple suspects are still at large after a shooting in a nightclub in Cincinnati city of Ohio left one person dead, police said. At least one person is in a critical state and 14 injured following the gunfire in Cameo nightclub on Sunday, Xinhua news agency quoted police as saying. Obryan Spikes, 27, died in the shooting, Cincinnati police chief Eliot Isaac said. So far no arrests have been made, he said. Also watch: The investigation is ongoing, city Mayor John Cranley said, adding the probe will be a "long process". "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 Manager Harry Black said. Another policeman Paul Neudigate said they did not suspect this action as terrorism. Hundreds of people were inside when "chaotic crime scene" took place, he said.