Updated at 6:30 p.m. Jan. 12: Revised to include details about an arrest.

A 15-year-old has been arrested after two people were wounded by gunfire during a fight Saturday night at a high school basketball game between South Oak Cliff and Kimball, Dallas police say.

The 15-year-old, who turned himself in at Dallas police headquarters, has been charged with aggravated assault.

An 18-year-old man was badly wounded in the shooting, and a Dallas ISD police officer was grazed by a bullet fragment.

The officer is expected to be OK, district spokeswoman Robyn Harris said. Police have reported the 18-year-old was critically wounded but also have described his condition as serious.

The victims’ names were not released. Harris said the 18-year-old was not believed to be a current DISD student.

Dallas police were called about 9:10 p.m. to Ellis Davis Field House on South Polk Street near Interstate 20 in Red Bird.

Harris said the gunfire began during a fight. Video shows people scrambling out of the arena after multiple shots are heard inside.

Dallas police released two images Sunday morning of three people of interest in the case. After the 15-year-old’s arrest, police said two other juveniles identified in the photos would not be charged.

The district declined to answer further questions about the shooting Sunday. Superintendent Michael Hinojosa was expected to discuss the case at a news conference at 10:30 a.m. Monday.

“There is senseless violence that must stop,” Harris said.

The game was wrapping up a day of celebration for South Oak Cliff High, which had a ribbon-cutting ceremony Saturday after reopening this month following a two-year, $52 million renovation, she said.

“People there were there to unwind for the day,” she said.

Valerie Sherwood, who attended the game with her daughter, who’s a Kimball freshman, said that a few minutes into the third quarter, she heard popping sounds behind her and wondered who had fireworks.

She realized the noises were gunshots when she saw people running.

“I didn’t panic, but I did hit the floor,” she said.

Her daughter had been sitting with friends on the other side of the gym.

“But after all of this happened, I didn’t see her," Sherwood said.

They reunited at their car and got home safely, but she said Sunday evening that she was still rattled.

“I hate it’s getting closer to home. We’re hearing it at other places, but this is getting closer,” said Sherwood, a 47-year-old Kimball alumna. “Never in my wildest dreams did I think I’d ever be anywhere where there was an active shooter.”

She said she was frustrated that there were no metal detectors at the game and that her bag wasn’t searched.

“There needs to be more security,” she said. “We need to feel safe at things like this.”

It was my pleasure to attend the ribbon cutting ceremony for the new South Oak Cliff High School today. These students are our future - they deserve the facilities necessary for success! pic.twitter.com/0ZaZJiU4d5 — Rep. Eddie Bernice Johnson (@RepEBJ) January 11, 2020

Anyone with information about the case can contact Detective Brewster Billings at 214-283-4805, 214-671-3083 or brewster.billings@dallascityhall.com and refer to case number 007438-2020.

Staff writers LaVendrick Smith and Corbett Smith contributed to this report.