Update as of 8:21 a.m.:
A suspect is now in custody following a more than seven-hour standoff near Sauble Beach.
Grey Bruce OPP said officers were called to a "high-risk situation" involving a weapon just before midnight on Monday on Bruce Road 8 between Sauble Beach and Hepworth.
The area was blocked off while police negotiated with a man inside a residence.
Just before 7 a.m. Tuesday morning, members of the OPP Emergency Response Team took the man into custody. All roads in the area are now open.
The investigation is ongoing.
-With files from Kate Stockmann
