Lakeshore OPP are currently investigating a threatening note that was located in the Vistaprint plant on Advance Drive in Lakeshore.
Police are currently evacuating the building and assessing the situation.
All other businesses in the area are operating as usual. But, police ask that people avoid the area, while the investigation continues.
This is the second incident at the plant in one week. Last Thursday it was evacuated for several hours while police investigated a bomb threat.