Correction: An earlier version of this story said a recalled salad kit was purchased at an Alberta grocery store. In fact, the grocery store investigated and said it came from a different facility than the one the recalled products were produced at and no recalled products were sold at that store.

An amended version of the previous story appears below.

A ready-to-eat salad kit sold at an Alberta grocery store was not part of a recall, despite appearing to have the same product code and best before date as the recalled product.

On Tuesday evening, an Albertan sent CBC News a photo of what he said was a salad kit purchased at a Cochrane grocery store on Friday.

The kit appeared to match the 340-gram Eat Smart brand Sweet Kale Vegetable Salad Bag Kit recalled by the Canadian Food Inspection agency on Sunday.

The recalled products have the UPC 7 09351 89145 8 and best-before dates of Feb. 16, as did the salad kit purchased in Alberta.

But the kit in question had different production codes, the grocery store said, meaning it was not produced at the same facility as those recalled and did not represent a danger to consumers.

Anyone with the recalled product at home should throw it in the garbage or return it to the store of purchase, CFIA says on its website.

CFIA said its food recall warning named all the provinces where the product was known to have been distributed, but added its distribution could possibly be national. As of Wednesday, it listed only three provinces on its site.

The agency's website says it is investigating, which may lead to other products being recalled.

There have been no reported illnesses connected with the product.

Listeria symptoms can include vomiting, nausea, fever, muscle aches, severe headache and neck stiffness, and in severe cases the illness can be fatal. Pregnant women, the elderly and people with compromised immune systems are particularly at risk.