Pennsylvania residents should be skeptical of calls from people claiming to represent utility companies and threatening to shut off electricity without payment.

Attorney General Kathleen G. Kane issued a news release Friday warning residents of the scam.

Con artists are threatening to cut residents' electricity if they do not wire money or offer debit information.

Specifically, the callers are asking for the numbers on "green dot" cards, which they can use to access prepaid debit funds.

The state's Public Utility Commission requires utility companies to notify consumers through written correspondence before shutting off service, according to the news release.