Northumberland OPP are investigating a break-in at a business on the Alderville First Nation, just south of Rice Lake.
It happened sometime around 2:30 a.m. on Wednesday, when officers responded to an alarm on County Road 45 and found the business had been forcibly entered.
Suspects got away with an undisclosed number of cigarettes.
Anyone who might have information on the case is asked to call Northumberland OPP or Crimestoppers.