Oro Valley police said town residents have received fraudulent checks in the mail, along with letters that say the recipient has won a prize and must contact a representative to receive the funds.

Some letters ask recipients to pay taxes on the so-called winnings upfront via Western Union and, after doing so, they will receive the full amount in about 48 hours.

Police said the checks and contest are not real and are part of a scheme to bilk people out of money. Police say recipients should discard the letters and monitor their credit reports periodically to make sure no unauthorized accounts have been opened.