MILWAUKEE — The Milwaukee Police Department said officers responded to a shooting on Monday at 4:21 p.m. in the 2900 block of North Dr. Martin Luther King Jr. Drive. 

The shooting, police said, stemmed from a fight among multiple young females. On Thursday, police arrested a 15-year-old male that is suspected to be the sole shooter in the incident. Police previously misstated that it was a 16-year-old. Police said they also arrested a 19-year-old male suspect in connection to the incident. Police did not specify what part he may have played in the shooting. 

Police had also identified and arrested a 17-year-old male as an alleged shooter.

All three males are in police custody. Police said criminal charges will be referred to the Milwaukee County District Attorney's Office. The police investigation is fluid and ongoing.

Six people, including both arrested males, all have non-life-threatening injuries. Victims are between the ages of 14 and 19 years old. The four other victims were female, according to authorities. Police said the injuries varied among the victims but all six are expected to survive. 

A Facebook Live video taken in the immediate aftermath of the shooting shows at least two young people with gunshot wounds being treated by paramedics on the pavement.

The person who filmed the Facebook Live said in the video that a teenage girl or young woman had suffered a gunshot wound to the neck. The Facebook user tried to comfort her sobbing friend, who was trying to contact her mother. 

A man who identified himself as T. Jenkins told the Milwaukee Journal Sentinel he provided aid to a young woman with a neck wound. There was blood coming out of the left side of her neck, he said.

“I applied pressure to her neck,” he said. “I tried to keep everyone calm around me.”

The shooting took place about 20 minutes after downtown Juneteenth events had concluded. Milwaukee Police Chief Jeffrey Norman said there has never been a shooting in Milwaukee at previous Juneteenth events. 

Even though the shooting happened after the celebration concluded, Milwaukee Mayor Cavalier Johnson noted that with thousands of people in attendance, this could have been tragic. 

"Today, there were families out here. There were kids out here. There were babies out here. It does not sit well with me... for folks to think that it is OK to take a gun out in a densely populated area and fire shots off," Johnson said.

When the shooting occurred, hundreds of people were still walking along the street. The festival ran from 9 a.m. to 4 p.m. Police officers were stationed in several places along the parade route and throughout the festival.

“I just heard commotion, gunshots, people screaming," Keith Caldwell, a festival vendor, said. Caldwell said he believes there is a need for gun control. He called gun violence an "uncontrollable situation."

Johnson did note that "Juneteenth was a safe event." 

Johnson and Norman stressed the concern in the city that more young people are involved in violence. 

"We have a variety of ages who should not have been harmed, [and] should not have been involved in this kind of behavior," Norman said. 

"There's no reason that a young person should have their hand on a gun of any kind... It is completely and totally unacceptable," Johnson added. 

During a Monday evening press conference, officials called on parents to take responsibility for their children and gun safety. 

"Milwaukee, what's going on with our children? Parents, guardians, elders, we need to engage and ensure that this violence children are bringing to our streets cease," Norman said. 

Johnson said if someone has access to a gun and is planning to go to an event and shoot someone, they should not go to the event. He said the city has resources available to help those in distress, but "you don't have the right to steal the joy that this community felt today." 

He also said no argument is worth ending with gun violence. 

"This is a story that plays out too often and it's getting really old, really old," Norman said. 

Free mental health resources in Milwaukee are available here.

This story is developing. Check back later for updates.