Police in Quebec and Ottawa says a smash-and-grab armed bank robbery operation in Quebec may have links to northeastern Ontario.

Three Quebec men were charged with armed robbery on Sunday — and now they're also under investigation for bank robberies in Sault Ste. Marie and Sudbury.

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The robberies appeared linked because the robbers would wait for the tellers to transfer their tills from the vault to their cashier stations, police said.

That’s when they'd allegedly use a sledge hammer to break the bank windows and get in to snatch the money.  

The accused have been charged with three robberies between March and September of this year.

The total value of the robberies amounts to $600,000.

The investigations relating to Ontario continue by the OPP, the Sault Ste. Marie Police Service, the Greater Sudbury Police Service, Ottawa Police Service and the Waterloo Regional Police Service.