(AP) — Police say a man has died and three people are in custody after an altercation that happened in the parking lot of Arrowhead Stadium as the Kansas City Chiefs played the Denver Broncos.Police spokesman Darin Snapp tells The Associated Press the death is being treated as a homicide but no arrests have been made. He says the man who died was found inside someone else’s vehicle and a struggle ensued.

The man, who was in his 20s, was found unconscious on the pavement. Snapp says paramedics began administering first aid before he was transported to a hospital, where he died. His name has not been released.

Chiefs spokesman Ted Crews says the team is aware of the incident but cannot comment further because of the police investigation.

9:02 p.m.  Sunday   (AP) — Police say two people have been arrested after a person was killed in the Arrowhead Stadium parking lot.

Details have not been released, but Police Chief Darryl Forte tweeted about the incident Sunday night on Twitter. Forte said the death is being investigated as a homicide and that two suspects are in custody.

Flashing emergency lights could be seen outside the stadium after the incident.

The Chiefs lost to the Denver Broncos, 35-28, on Sunday at the stadium in Kansas City. It isn’t clear if the incident involved fans who had been at the game.

Kansas City Chiefs spokesman Ted Crews says the team is aware of the incident but could not comment any further because of the ongoing police investigation.