A routine arrest at a North Kansas City casino Sunday quickly escalated into a massive melee involving 450 people, police said.

Officers were attempting to arrest a number of suspects at the VooDoo Lounge in Harrah's casino when the suspects fought back. Other casino patrons joined in the fracas until hundreds of people were involved.

Police backed off until officers from other area law enforcement agencies could arrive to help quell the disturbance. Five people were later arrested in the fight.

Two North Kansas City officers and numerous casino employees and patrons also received minor injuries.

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The Associated Press contributed to this report.