Children's clothes bearing the slogan "Slavery gets shit done" have been pulled from sale by online retail giant Amazon.com Inc. after criticism from shoppers and anti-slavery groups.

A range of products featuring the slogan, from mugs and bags to T-shirts modeled by young children, were listed by third-party sellers and have been removed from sale, Amazon said.

"All Marketplace sellers must follow our selling guidelines and those who don't will be subject to action including potential removal of their account," an Amazon spokesman said in a statement. "The products in question are no longer available."