SIOUX FALLS, S.D. (KSFY) - Sioux Falls Police responded to a robbery at Casey's General Store at about 5:30 a.m. in the area of East Rice Street and North Jessica Avenue.
A lone subject wearing dark clothing and a Halloween mask entered the store, pulled out a knife, and demanded money.
The subject ran away with an undisclosed amount of cash.
No one was injured in the incident.