Staff at Coles Kings Meadows were confronted with a knife wielding armed robber last night, close to 8pm in Launceston.
He had been attempting to make off with a packed trolley when a worker stepped in, that is when the man in his late teens / early 20's got out the knife.
The trolley and the goods were recovered outside the business after the bandit ran away.
He's described as 180 - 184 centimetres with brown hair and wearing a dark coloured hooded jumper with an orange hood lining, light coloured pants and black shoes.
Anyone with information has been asked to contact Launceston Police on 6777 3945.
Information can also be provided anonymously by calling Crime Stoppers on 1800 333 000 or online at crimestopperstas.com.au