HARTFORD, Conn. (AP) — Gunfire erupted at a Connecticut nightclub early Sunday morning, killing a man and wounding four other people, police said.

A 28-year-old man died in the shooting at the Majestic Lounge in Hartford’s South End, police Lt. Paul Cicero said. Two other males and two females were wounded, with two of them in surgery Sunday morning and two in stable condition, he said. None of their names were released.

Police officers had been stationed outside the club because of previous problems there and reported the shooting at about 1:30 a.m. Officers rushed in, but were confronted with a large number of people running toward the exits, Cicero said.

“Everybody started pushing their way out to get away from the gunfire,” he said. “It was kind of pandemonium.”

Officers, however, were able to provide immediate medical care to the victims, he said.

There were no suspects in custody. Officials said there was little information to release because the investigation was in the very early stages.

A message seeking comment was left Sunday at a phone number for the club.

Mayor Luke Bronin said Sunday that illegal handguns were involved in the shooting.