SCOTTSBLUFF, Neb. (AP) — Police have arrested four people on suspicion of counterfeiting and passing fake bills in western Nebraska.

25-year-old Crystal Hernandez and 27-year-old Andrew Nuss were arrested Thursday. Both have been charged with forgery. Nuss is also charged possession of a forgery device.

Two other men have been arrested in the case, but have not yet been formally charged.

Police say Nuss and another man used counterfeit $20 bills to buy merchandise at a Scottsbluff store earlier this year. Police say they later returned the items for cash.

Police obtained a search warrant for a home where Nuss was staying. Police say Hernandez was a resident in the home and arrested after police searched it.