Starbucks’ pre-packaged sausage, egg, and cheddar cheese on English muffin breakfast sandwiches from its Arkansas, Texas, and Oklahoma stores have been recalled over concerns that the products could have traces of listeria.

The contaminated products belong to Progressive Gourmet, a Wilmington, Massachusetts supplier. It is packed in a six-ounce, clear plastic, and has been marked with ‘Best Before: 07-AUG-2016’.

In an online statement, the FDA noted that the Seattle-based coffee chain has pulled off the sandwiches from its all 250 stores that have probably received it.

The listeria was spotted on a contact surface in the production facility. The FDA noted that the Progressive Gourmet is working along with the FDA and the Massachusetts Department of Health in the investigation of the source of the problem.

On Monday, a Starbucks spokesperson told NBC News in an email, “As soon as we were made aware of a supplier issue with a specific lot of Sausage, Egg and Cheddar Breakfast sandwiches, we removed the impacted product from the select Texas, Oklahoma and Arkansas area stores that carried it”.

The spokesperson said that the product itself hasn’t tested positive for Listeria monocytogenes, and none of the other products have got affected due to it. The chain hasn’t received any illness reports so far.

Starbucks clients who've already purchased the sandwiches in the affected areas can return the product at the coffee shop where they purchased it.

The Centers for Disease Control and Prevention said that listeria can result in serious and sometimes deadly infections, and its symptoms generally include fever and muscle aches. As per the FDA, listeria could be specifically dangerous in the case of young children, frail or old people, and expectant women.