Three people were arrested in two separate incidents that took place between 4 and 4:30 a.m. Saturday, police said.
In one incident, a verbal argument between two people turned into pushing and shoving, police spokesman Sgt. Matthew Dearing said. Two people were arrested and released with violations, Dearing said.
In another incident, a person who was removed from the casino and arrested when they tried to get back inside, Dearing said.
In the first five weeks of operation, Rivers Casino generated 29 emergency 911 calls and 150-plus non-emergency calls.