Barrie police is asking for the public’s help after fake U.S. money was used at several businesses.

Over the last month, counterfeit American bills were used in four separate incidents. In most cases, police say a $50 bill was used to make a small purchase.

These incidents have happened at The Source on Mapleview Drive, a Subway Restaurant, McDonalds, Old Navy and Sears. Different suspects are being sought in all four cases.

Anyone with information is asked to call police or Crime Stoppers.