MUSKOKA - UPDATE: King William Street has been re-opened.
Huntsville OPP have closed a section of King William Street between Cliff Avenue and Scott Street.
Tactical units are also on site and some businesses including McDonalds have been evacuated from the area.
Police indicated at 5:30 p.m. that the closure should not last much longer. OPP will not comment on the investigation. Muskoka Mommies will provide an update when one becomes available.