(CBS4) – Authorities in Morgan County want people to be on the lookout for counterfeit cash. The warning comes after several $100 bills were used in the nearby Grant, Nebraska, area.

(credit: Morgan County)

All the bills that have been collected have the same markings and serial numbers.

Counterfeit bills are often used at garage sales, flea markets or other high volume events where people won’t look at them too closely.