Surveillance video images of the bank robber, who was wearing a hat and face mask were circulated by law enforcement agencies.
A suspect was arrested on Saturday, Hamilton police said. Luis Estrada, 28, was arrested while returning to his home block on Schiller Avenue, they said.
About 4:15 p.m. Friday, a man wearing a white mask and fishing hat entered the PNC Bank on Broad Street in Hamilton.
The man gave a note to the teller demanding money, and gestured to his waistband where he appeared to have a black handgun, police said.
The teller gave the man an undisclosed amount of money and he ran out toward a back alley.
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