Kansas City Police continue to investigate the mass shooting late Sunday outside a nightclub near U.S. 40 and Noland Road that left two dead and at least 15 reportedly injured.

The shooting took place at 9nine Ultra Lounge shortly before 11:30 p.m. Capt. David Jackson told news outlets at the scene that responding officers found “a chaotic scene” and had to call in help from around the city. They found a man and a woman dead.

Police later identified the woman as 25-year-old Raeven Parks of Kansas City. The man, believed to be the shooter, was identified as 29-year-old Jahron Swift of Kansas City

Police said the shooter opened fire on a line of people waiting to enter a bar, following some kind of disturbance in the bar, though they have not yet identified a motive. Swift was shot by an armed security guard, police said.

During the investigation, police heard that people – at least 15 – were showing up to local hospitals with injuries. It's unclear whether all the injured victims suffered gunshot wounds. At least three people were in critical condition, police said.

Independence, Blue Springs and Raytown police and Jackson County sheriff's deputies assisted at the scene.

The nightclub is owned by former Chiefs player Alphonso Hodge and opened just last year. It is in a strip mall off the southwest corner of U.S. 40 and Noland Road, between the gym Do Work Factory 2.0 (also connected with Hodge) and a Dollar General store.

A Facebook post on the 9ine Ultra Lounge's page advertised Sunday night's “Sold Out Sundays” event, which appeared to be a celebration of the Kansas City Chiefs. The Chiefs – featured on the event's artwork – beat the Tennessee Titans on Sunday to advance to the Super Bowl.

Smith said police have been called before to the club or its parking lot for incidents, including a reported drive-by shooting earlier this month.

In response to the Chiefs win Sunday, police had been observing entertainment establishments around the city to possibly deter violence, and officers checked the 9ine Ultra Lounge parking lot minutes before the shooting, he said.

“We had just been there,” Smith said.

Kansas City Mayor Quinton Lucas said city staff will be looking into the club to see if it should be considered a nuisance property.

Smith said police do not believe anyone else besides Swift and the security guard fired guns. He said the guard heard the commotion from the shooting from inside the club.

“I don't know if he knew why there was a disturbance; he just went outside and that's when he confronted the suspect,” Smith said.

Smith said that as of early Monday afternoon police had not yet spoken to all injured people and they still want to talk with other witnesses to get a clearer picture of Sunday's events.

Lucas said he was “incredibly frustrated” to have another case of gun violence in the midst of celebrating the Chiefs' historic win.

“Last night was a night lot of people in Kansas City have been dreaming of for 50 years,” he said. “It's heartbreaking for a number of families.”

“It just put such a tragic end to such a wonderful day in Kansas City,” Jackson County Prosecutor Jean Peters Baker said at the scene Sunday night, referencing the win. “It's just hard to stand here and talk about this kind of tragedy on really one of the best days Kansas City has had in a long time.”