"Apple and several of the nation's largest book publishers were hit with a federal antitrust lawsuit on Wednesday for allegedly colluding to fix e-book prices.

According to the complaint, filed by the U.S. Department of Justice, at least five publishers—Simon & Schuster, HarperCollins, Hachette, Penguin and Macmillan—conspired with Apple to fix prices for e-books ahead of the 2010 launch of the iPad tablet and iBookstore, forcing Amazon to raise prices for e-books on the rival Kindle.

Simon & Schuster, HarperCollins and Hachette have already settled with the Justice Department. According to Bloomberg, Apple and Macmillan "have refused to engage in settlement talks" and "deny they colluded to raise prices for digital books." Penguin plans to fight the lawsuit too, Bloomberg said."