The credit union in Pangman, Sask. was robbed Wednesday morning.
Weyburn RCMP said the robbery took place around 10:20 a.m.
Police said a man entered the bank and demanded cash. Officers are not sure which way the man went or how much money he stole.
No weapons were used in the robbery and no employees were injured.
The suspect is described as a white man, around five feet ten inches tall, with a stocky build wearing a tan-coloured coat and a dark-coloured balaclava.
Police believe the man might have left in a red SUV, but they do not have a licence plate number.
Anyone with information is asked to contact Weyburn RCMP or Crime Stoppers.
Pangham is located 60 kilometres west of Weyburn.