Apple violated antitrust laws by colluding with publishers to raise electronic book prices when it entered a market in 2010 that had been dominated by Amazon.com, a federal appeals court said Tuesday.

The 2nd U.S. Circuit Court of Appeals in Manhattan ruled 2-to-1 that a lower court judge was right to find Apple Inc. violated the laws to upset Amazon.com Inc.'s control of the market.

The appeals court also agreed that U.S. District Judge Denise Cote was right to order injunctive relief to ensure the Cupertino, California-based company didn't commit additional violations of antitrust laws.

An Apple lawyer said in an email that comment would be issued soon.

Cote ruled against Apple after a civil trial in summer 2013. She ordered the technology giant to modify contracts with publishers to prevent price fixing and appointed a monitor to review the company's antitrust policies. The appeals court weeks ago upheld the appointment of the monitor.