NEW YORK (CBSNewYork) — Four men are accused of scamming the post office out of nearly a half million dollars in a lucrative checking scam.

Nassau County police said the scam would start on the defendants’ homes where they would use their computers to print out phony checks, WCBS 880’s Sophia Hall reports.

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WCBS 880’s Sophia Hall with Sgt. Dennis Uti

The checks were apparently so convincing, the suspects were able to make several deposits into debit accounts at numerous banks across the area, including Bank of America, Capital One, JP Morgan Chase, Citibank and Wells Fargo.

Police Sgt. Dennis Uti said the men would then use their debit cards to purchase postal money orders with the false balance.

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The men are accused of stealing $500,000 in money orders.

Uti believes the men were using the ill-gotten gains to pay off their debts — including student loans.

The latest arrest in the case came Wednesday. Sameth So, 26, of Brooklyn, has been charged with grand larceny, criminal possession of a forged instrument and scheme to defraud.

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The investigation is ongoing.