MOUNTAIN HOME, Ark. -- The Baxter County, Arkansas sheriff is warning people of a scam involving the Publisher's Clearinghouse sweepstakes. Three complaints have been filed with the sheriff's office. Each time, the caller told the person on the other end that they had won a quarter million dollars and would need to go to a local Wal-Mart to pay a processing fee of up to 550 dollars in cash. Investigators believe the calls are coming from Jamaica. If you get one of these calls, don't give any personal information and hang up.