Sterling, Ill., police are warning area residents and businesses to be on the lookout for counterfeit $10 and $20 bills.
Counterfeit bills were reportedly passed at two Sterling businesses. The incidents occurred on Sept. 18 and Sept. 19 when suspects purchased items using counterfeit $10 and $20 bills.
The $20 bills have a serial number of JA50877994A and the $10 bills have serial numbers of JF34075336A, II02299159A, GK3655709A and JF27125781A.
Police advise all businesses to use verification markers on all currency $10 and higher.
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Contact Sterling police at 815-632-6640 if you encounter counterfeit bills or have questions.