At least one died and three injured when a young man fired a gun during a fight near a family unity festival in Cleveland, police said on Sunday.

On Saturday night, a fight broke out in a parking lot about three-quarters of a mile from Luke Easter Park locale, the venue of the eighth annual Family Unity in the Park festival, which was headlined by the funk, soul and rock music collective  Parliament-Funkadelic featuring George Clinton.

During the fistfight, one teenager took out a gun and shot four people. One of the four victims, a 16-year-old boy died on Sunday morning after being shot in the head, Sgt. Sammy Morris, a spokesman for the Cleveland police department said.

According to police, a 20-year-old woman, who was shot in the neck, is now "conscious and speaking." The other two victims, a 14-year-old boy and a 22-year-old man who were shot in the leg, are also out of danger and expected to be discharged shortly from hospital.

Police have not yet released the names of the victims. No one has been arrested.

"My thought is, here it happens again," Cleveland Mayor Frank Jackson said Sunday at a press conference. "And again, it's with children," he explaining his reaction upon hearing of the incident.

It was not clear whether any of those involved in the shooting attended the concert. Authorities said that the unfortunate incident is not related to the festival, or the George Clinton concert.

"George Clinton and the other bands are basically from back in the 80s, that's when they were at the height of their popularity," said Morris. He added that over 75 percent of the crowd was likely over 40, and it was not like a "Little Wayne" concert where one can expect "a bunch of 16-, 17-, 18-year-olds."

After the incident Clinton took his personal Twitter page and wrote: "This incident happened AFTER our show and we are truly saddened and send our sincere sympathy out to the families."

According to the Family Unity in the Park website, Luke Easter in eastern Cleveland is the largest urban park in the state of Ohio. Political leaders like Jesse Jackson and John Kerry have also been hosted by the park.