Some of the recent incidents occurred in Whitby, where the posters were found outside of the Whitby Public Library, a school in Brooklin, and on a mailbox in the Beech Street West and Cochrane Street area.
The posters look similar, with a white background and black text, and had the same discriminatory message directed towards immigrants. Other such posters were found in October in Port Perry and in November in Newcastle.
If anyone has any new information in regards to these incidents, please contact the Central West Community Resource Unit at 1-888-579-1520 ext. 1850.
Anonymous information can be sent to Durham Regional Crime Stoppers at 1-800-222-TIPS (8477) or online at www.durhamregionalcrimestoppers.ca and tipsters may be eligible for a $2,000 cash reward.