The mass shooting that unfolded amid throngs of people at the Kansas City Chiefs’ Super Bowl celebration, killing one person and wounding almost two dozen others, appeared to stem from a dispute between several people, authorities said Thursday. Police Chief Stacey Graves said that the 22 people injured in the shooting ranged between the ages of 8 and 47 years old, half of whom were under the age of 16. A mother of two was killed. Three people were detained — including two juveniles — but no charges have been filed yet, Graves said. Police are calling for witnesses, people with cellphone footage and victims of the violence to call a dedicated hotline. "We are working to determine the involvement of others. And it should be noted we have recovered several firearms. This incident is still a very active investigation,” Graves said at a news conference. The shooting outside Union Station occurred despite the presence of more than 800 police officers who were in the building and area, including on top of nearby structures, said Mayor Quinton Lucas, who attended with his wife and mother and ran for safety when the shots rang out. But he doesn't expect to cancel the upcoming St. Patrick’s Day parade. MORE: https://www.wtsp.com/article/news/nation-world/shooting-kansas-city-chiefs-celebration/507-e8c247d5-4c80-4314-921b-080d570ba689 ►Subscribe: https://on.wtsp.com/youtube ►Website: https://www.wtsp.com/ ►Facebook: https://facebook.com/10TampaBay ►X: https://twitter.com/10TampaBay