NEW YORK (AP) — If you’re hoping to pre-order books by J.K. Rowling, Michael Connelly and other Hachette Book Group authors, you’ll have to go somewhere besides Amazon.com.

An ongoing standoff between Amazon and one of the leading New York publishers has intensified. The online retailer, which already had been slowing delivery on a wide range of Hachette titles, has removed pre-order buttons for such books as Connelly’s “The Burning Room” and Rowling’s “The Silkworm,” a detective story coming out next month that she wrote under the pen name Robert Galbraith.