Sioux Falls, SD (KELO AM) - Police have left the scene of a standoff situation that began around 10 a.m. Saturday morning at the Foxmoor Apartments. The Argus Leader reports that residents are free to return to their apartments at 18th Street and Equestrian Place. It is not know at this time what prompted the standoff or if a person is in custody. Apartment Manager Matt Petersen says the incident involved a person who is not a resident of the apartments. The standoff ended around 3 p.m.