Roughly six police officers entered the building at 70 East Street with guns drawn.
SooToday was on the scene at 8:30 p.m. as the officers entered the building.
One officer also had a member of the canine unit.
Sault Ste. Marie Police have also shut down a section of Wellington Street East.
The street is closed to traffic between Pilgrim Street and East Street, in the area of St. Andrew's United Church.
It is not yet known if these occurrences are related.
SooToday will update this story as more information comes in.