A federal judge on Tuesday ordered Apple to help authorities access the mobile devices used by the two perpetrators of December’s terrorist attack in San Bernardino, Calif.

In the ruling, U.S. Magistrate Sheri Pym ordered Apple to provide “reasonable technical assistance” to the Federal Bureau of Investigation in accessing iPhones used by Tashfeen Malik and her husband, Syed Rizwan Farook. The two were responsible for killing 14 people in the Dec. 2 attack. FBI officials have complained that they have been unable to access one of the Apple iPhones used by the couple because of the strong encryption the company employs.