After behind-the-scenes discussions with Mercy For Animals, Sears Holdings Corporation’s subsidiary Kmart, the third-largest discount store in the world, announced it would work with its suppliers to eliminate gestation crates from its pork supply chain.

Mercy For Animals is releasing the findings of an undercover investigation at Christensen Farms, one of Kmart’s pork suppliers. The hidden-camera video exposes thousands of mother pigs forced to live inside narrow metal gestation crates barely larger than their own bodies, piglets slammed headfirst into the ground, workers cutting off piglets’ tails and testicles without painkillers, and animals suffering from bloody open wounds. Pigs confined in gestation crates are unable to even turn around, take a step forward or backward, or lie down comfortably for nearly their entire lives. Kmart took swift and decisive action—immediately denouncing the use of gestation crates in their supply chain—after MFA privately presented them with the undercover video.

Gestation crates are so cruel that the entire European Union and the states of Florida, Arizona, Ohio, Oregon, Colorado, California, Maine, Michigan, and Rhode Island, have banned their use.

MFA is now calling on Walmart, another customer of Christensen Farms, to quickly follow Kmart’s lead in taking a stance against inherently cruel gestation crates. To view the undercover video of Christensen Farms, and to learn about MFA’s newly launched campaign against Walmart, please visit WalmartCruelty.com.