Three armed robbers stole cash from a Riverhead gasoline station convenience store Thursday night, Riverhead police said.

The suspects had a handgun and a knife when they confronted employees of the OK Petrol Mini Mart Gas Station on East Main Street about 7:30 p.m., police said.

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They got money, then ran away, authorities said.

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Police said anyone with information can call them at 631-727-4500.