(CNN) -- Four people were shot, one of them fatally, after a young man pulled a gun during a fight in Cleveland and began firing into a crowd after a festival, police said.
No one had been named as a suspect nor arrested in the case as of Sunday evening.
The shooting took place Saturday night soon after the close of the eighth annual Family Unity in the Park festival, an all-day event held in the Mount Pleasant section of the northern Ohio city.
Parliament-Funkadelic, the 1997 Rock and Roll Hall of Fame inductee featuring George Clinton, was the night's headline performer at the free event.
After the group wrapped up their set around 9:40 p.m. and fireworks went off five minutes later, the crowd began heading home, Cleveland City Councilman Zachary Reed said Sunday.
Sometime later, a small group of young people got into a fistfight in a parking lot about three-quarters of a mile from the park, said Sgt. Sammy Morris, a spokesman for the Cleveland police department.
One of those involved took out a gun and began shooting, Morris said. The slain 16-year-old died after being shot in the head.
A 20-year-old woman who was shot in the neck was "conscious and speaking" afterward, the police spokesman said, while 14-year-old and 22-year-old males were shot in the leg.
"My thought is, here it happens again," Cleveland Mayor Frank Jackson said Sunday at a press conference, explaining his reaction upon hearing of the incident. "And again, it's with children."
Cleveland Police Chief Michael McGrath told reporters there were officers within 100 yards of the shooting.
"Yet the suspect had the audacity to disrespect and pull out a handgun and shoot the victim," McGrath said, adding that he believed the three others shot were with the victim.
It was not clear whether any of those involved went to the concert. Morris noted that fans of Clinton and the Ohio Players, who also performed, tend to be over 40. The victims are in their teens or 20s.
Clinton, on his personal Twitter page, wrote: "This incident happened AFTER our show and we are truly saddened and send our sincere sympathy out to the families."
Reed, who organized the festival and represents the area where the shooting took place, described the 16-year-old victim's mother as "devastated" when he visited her Sunday morning.
"Forget about the event, I'm just sad for the family," he said.