Sioux Falls Police are investigating a robbery that took place around 12:09 A.M. Tuesday.

Officers were dispatched to Happy Jacks Casino, 4601 E. Arrowhead Parkway in response to a robbery.

One suspect entered the store, armed with a handgun, and demanded money from the clerk. The suspect then fled through the south door of the business with an unknown amount of cash.

The suspect was described as a male, 5'4", 170 pounds, wearing a black ski mask, a red bandana, and a gray jacket.

No one was injured in the incident and the investigation is ongoing.

Anyone with information regarding the robbery is encouraged to call Crime Stoppers.