A woman is alleged to have left an Amaroo supermarket with a trolley full of groceries without paying.

Police say the woman entered Coles Amaroo about 7.15pm on December 23, obtained a trolley and collected a significant volume of groceries. They allege she left the store through the entry gates without paying for the items.

Police have obtained CCTV footage and describe the woman as having a medium build with dark hair and wearing white shorts and a long-sleeve blue top.

Anyone who can identify the woman or witnessed the incident is urged to contact police via the Crime Stoppers ACT website.

News all day, every day at CityNewsQBN.com.au.