Business owners in Madison County are concerned after a string of break-ins at local businesses.

The Dairy Queen in Berea was hit on last week.

Employees say that Saturday they were warned by police about burglaries at several other businesses and Sunday morning two people broke in.

On surveillance you can see one of the men entering through drive-thru window. Once inside, the two went to work on the cash registers and safe. They even used a heavy-duty grinder to try at get into the safe.

Employees say that the thieves only got away with $75, but that they ended up causing thousands of dollars damage.

Berea Police say they are unsure if all the break-ins are related at this time, and that another business may have been hit this morning.