A man died and three people were taken if for questioning after an altercation in the parking lot of Arrowhead Stadium in Kansas City, as the Chiefs played the Denver Broncos on Sunday, The Associated Press reported.
Kansas City police spokesman Darin Snapp told The Associated Press that the incident was being treated as a homicide.
Snapp added that the man who died had been "found inside someone else's vehicle and a struggle ensued," reported The AP.
"Talking to several witnesses that were out here in the parking lots, there was an individual who came back to his vehicle, saw someone inside the vehicle that did not belong. A struggle ensued between the two. That's when the individual (who had been inside the vehicle) collapsed," Snapp said.
"We don't know if the person had a health condition, had a heart attack. We don't know. We're going to investigate this as a homicide until we hear differently. Right now it's a suspicious death but we are going to investigate it as a homicide," the police spokesman added.
The Kansas City police spokesman said that police continue to speak to several witnesses.
The three people the authorities sent in for questioning are "persons of interest... We're going to investigate it as a homicide. They're not suspects right now until we find out exactly what happened."
A gunman attacked a Kansas City Royals employee in the same parking lot in September 2012. In that incident, "the gunman shot the employee once in the abdomen and then returned to his vehicle and committed suicide," according to The AP.
The death also comes "one year to the day after Chiefs linebacker Jovan Belcher shot and killed his girlfriend, Kasandra Perkins, on Dec. 1, 2012, at a home not far from the stadium. Belcher then drove to the team's practice facility and fatally shot himself in front of then-coach Romeo Crennel and general manager Scott Pioli," news reports said.