SACRAMENTO (CBS13) — Tyson Foods has expanded a recall of its frozen, ready-to-eat chicken strips.

The original recall back in March consisted of 69,000 pounds.

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Today’s recall expands that to 11,829,517 pounds.

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The reason?

Tyson says the chicken strips may contain pieces of metal.

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The products in question have the number P-7221 on the back of the package.