The U.K. media is in an uproar over rape and incest porn ebooks that popped up in searches on sites like Amazon (s AMZN) and Kobo. In response, WHSmith took down its entire site over the weekend, and on Tuesday Kobo — which powers ebook sales through WHSmith’s site — announced that it is pulling all self-published books from its own U.K. website while it addresses the problem.

The ebooks in question have titles like Daddy Daughter Sex Stories and Daddy’s Birthday Gang Bang.

The saga started last week, when U.K. tech site The Kernel published a post entitled “How Amazon Cashes In on Kindle Filth.” Various U.K. newspapers, including the Daily Mail and Guardian, picked up the story. In the following days, The Kernel has continued to pump out posts on the issue, with titles like “An epidemic of filth” and the link bait-y “The…