WATERLOO - Waterloo Region Police have released photos taken from a security camera of a masked robber at a Waterloo gas bar.

A man with a knife robbed a gas station near Father David Bauer Drive and Westmount Road on Monday evening just before 7 p.m. The man, who may have been white and in his late 20s to early 30s, is described as being of average build. He wore a face-covering rubber Halloween mask and a baggy black hoodie and black pants.

Police are asking for the public's help to identify the man. Anyone with information is asked to call Waterloo Regional Police detectives at 519-653-7700, ext. 6399 or Crime Stoppers at 1-800-222-TIPS.