Hamilton Police are investigating the robbery of a Royal Bank located on Locke Street.
The incident happened just after 11 a.m. this morning.
Police say a suspect entered the bank and stole an undisclosed amount of cash.
It is believed it could be connected to a second robbery at a TD Canada Trust located on King Street West that happened around the same time.
Police remain in the area of Main Street West and Jackson Street West.
The investigation is ongoing.