FORT MYERS, Fla. - Crooks are preying on your curiosity in a new scam. A warning from the Better Business Bureau just went out saying these calls are mainly coming from the Caribbean. Your phone will just ring once. Maybe you'll get curious about who it is and call right back. But, we're learning that's the last thing you want to do.

"I had two phone calls from Grenada. I called one of them back and it just happened to be unpleasant moaning," Jessica Davis of Fort Myers said. "But, I wanted to find out just in case there was an emergency."

Davis recently started getting mysterious calls from the Caribbean. "Monday night at 10:49, when I was going to sleep, I got another random phone call from Barbados and I refused to call that one back," Davis said.

The Better Business Bureau just put out an alert calling this the "One Ring" scam. If you do call back, you're immediately hit with an international calling fee around $20 bucks. After that, you could be charged $5, maybe even $10 per minute with those charges showing up on your next phone bill.     

"Usually, these numbers are not auto-replicated. It's the same number attacking hundreds, if not thousands of numbers," Rob Mason, owner of Rob the Phone Doctor said.

To protect yourself, Mason said you can either manually block the numbers on your phone, or, "I would suggest contacting your carrier and maybe for three months to six months, ask them to restrict any and all international phone calls."

Your best bet: if you don't recognize a number, don't pick up and don't call back.

If you think you've fallen for a scam, immediately alert your carrier. The sooner they document it, the better your chances of getting the charges removed.