Burlingame police are warning the public about a scam involving calls to businesses about outstanding utility bills.
Police said at least four local businesses have received calls in the last two days from someone claiming to work for PG&E and calling to collect money that is past due.
The caller then says the victim can avoid immediate disruption of their utility services by using a pre-paid Green Dot MoneyPak card to make the payment.
The cards are legitimate debit cards that can be used to make purchases, but they are not traceable.
Police are asking the public to be suspicious of callers who demand immediate payment and to be aware that anyone with a Green Dot card number can access the funds on the card.
Police also warn against giving out personal or financial information to unsolicited callers and wiring money to a stranger.