Quite a dramatic scene in a normally quiet neighbourhood on Windsor's east side.
Police officers were called to a home in the 1500 block of Arthur Road near Seminole after 1 p.m. on Tuesday.
Police officers were scene with their weapons drawn, and entered the home.
But there is no word if anyone was arrested.
Police described the investigation as a "possible weapons call" and say it is still very active.
Police are not releasing any other details, but say there is no direct threat to public safety.