MARY CLARE JALONICK, Associated Press

WASHINGTON (AP) — A California apple packing plant has recalled all of its Granny Smith and Gala apple shipments from 2014 after they were linked to an outbreak of listeria in caramel apples that may have caused up to five deaths.

The Food and Drug Administration said Thursday that Bidart Bros. of Bakersfield, California is recalling apples shipped from its Shafter, California packing facility last year, prompted by a federal investigation of 32 listeria illnesses in 11 states.

Health officials warned consumers in December to avoid prepackaged caramel apples after they were linked to the illnesses. Caramel apples are most popular around Halloween, but the commercially produced variety can have a shelf life of a month or more, and some may still be on store shelves.