Officers received reports of a fraud in which the suspects who stated they were employees from financial businesses or agencies that sounded official, police said.
The caller would then instruct the victim to wire or send money for what turned out to be a non-existent debt, according to police.
The suspects in the fraud seemed to target people who don't speak English and threatened arrest or deportation, police said.
Officers also received reports of another fraud in which the suspects claim to be from PG&E calling to "collect delinquent balances," according to police.
The caller threatens to shut down the victim's electricity within the hour unless they provide the serial number of a pre-paid money card, police said.
The suspects are known to provide instructions to the victims on how to obtain the card, according to police.
Police are warning the public to be wary of callers who request money sent through a wire service or to another country.
The public is also advised to report any threats of arrest or deportation from scammers to law enforcement, police said.