The CIBC in Ponoka was robbed at knifepoint at about 10:30 a.m. on Wednesday.
The suspect is described as a Caucasian man, about 25 to 40 years old with a large mark on the back of his left hand between his thumb and index finger.
The suspect was wearing a black hoodie inside out, along with blue pants that had white stripes down the legs. The suspect was carrying a red bag.
Anyone with information relating to this crime is asked to contact the Ponoka RCMP at 403-783-4471 or Crime Stoppers at 1-800-222-8477.