SAN ANTONIO (AP) — The H-E-B grocery store chain has recalled bulk and packaged raw shelled pistachios.

San Antonio-based H-E-B on Wednesday said there's a potential that the raw shelled pistachios could be contaminated with salmonella. The issue was discovered through routine Food and Drug Administration sampling.

Salmonella is a bacterial illness that can cause serious and potentially fatal infections in young children, older adults and people with compromised immune systems. Most patients recover without treatment.

A company statement says there are no reports of illness and all of the recalled products have been removed from H-E-B and Central Market Texas stores.

The recall involves prepackaged plastic containers containing raw pistachios with labels reading Shelled Pistachios or Central Market Shelled Pistachios, with a best by date of Jan. 1, 2017.

The recall also involves pistachios found in bulk with SunRidge Farms labels reading: Women's Vitality Mix, Pistachio Nuts and Dark Chocolate Pistachios, with a purchased on or after date of May 15, 2016.

Customers can return the recalled products to a store for a full refund, or call 1-855-432-4438.

H-E-B operates more than 380 stores in Texas and Mexico.