An overnight shooting at a Montana casino has left three people dead and another person injured.

The suspect was tracked down and killed by police in the city of Great Falls . Authorities say the shooting at the Emerald City Casino in Great Falls happened about 2 a.m. Tuesday.

Police found the bodies of three victims inside the casino. A police statement says the suspect was located by police in another part of the city and was fatally shot by officers at about 5:45 a.m.

The injured person is undergoing treatment at a hospital. An elementary school near the place where police killed the suspect canceled classes.