Toronto police are warning of a "steady increase" of commercial break ins in north Scarborough.
Since last month, police say that suspects have been breaking in to businesses through the front door, in the early morning hours when they are still closed.
The suspects have been targeting cash registers, safes, and tip jars.
Police say the suspects stole cash and hairstyling tools.
Investigators don't have much of a description of the three male suspects. They were wearing dark clothing, hoodies, gloves and covering their faces.
Police are now advising business owners to put up a "NO CASH ON SITE" sign.