ISLAND FALLS — Maine State Police are investigating a bank robbery in the Aroostook County town of Island Falls.

Troopers are looking for a man who robbed the Katahdin Trust Company shortly before noon on Tuesday.

Authorities say he did not show a weapon and was wearing all black when he demanded cash from a teller and fled with the money in a blue bag that he had brought with him.

Police say only two bank tellers were in the building at the time.

The bank is about 30 miles southwest of the town of Houlton.

Police believe the robber got away in a vehicle that he had parking between two potato houses near the bank.