Published: Apr 14, 2010 3:48 AM EDT

MARCO ISLAND, Fla. - It's not a new scam, but it's recently hit quite a few Marco Island residents. A phone scam in which the caller pretends to be someone's grandchild in order to get money.

The scam goes like this: the victim receives a phone call from who they think is their grandson or daughter. In the cases on Marco Island, many of the victims say the caller actually used the name of their grandchild. The scammer said they were arrested in Canada and need bail money right away.

Since the caller had personal information of relative's names, it's left many to wonder how they got such personal information.

"I was interested to see what my grandchildren were doing on Facebook." That's why one resident says he signed up on the social networking site. Little did he know he could be opening himself up to a similar scam, because on many sites personal information is listed right on the page.

Police haven't said if this is how these scammers targeted Marco residents, but many locals are aware criminals are using social networking sites for more than just networking.

In similar scams elsewhere, obituary ads were also used. The scammer would call the widow, using the grandchild's name, all listed in the obituary in the paper.

Marco Police are investigating and ask that anyone who has received similar calls contact them right away.