A young Mississippi couple accused of attempting to join the Islamic State are scheduled for trial Oct. 26 after a grand jury indicted them on charges that they tried to aid the terrorist organization.

U.S. Magistrate Judge S. Allan Alexander set the trial date Tuesday following the Aug. 26 indictment of 20-year-old Jaelyn Delshaun Young of Vicksburg and 22-year-old Muhammad "Mo" Dakhlalla of Starkville, each on two counts of aiding terrorists.

Court records show both waived a court appearance on the indictment and pleaded not guilty. Their lawyers couldn't immediately be reached.

They were arrested Aug. 8 before boarding a flight with tickets bound for Istanbul. Authorities say they began seeking online help in traveling to Syria as early as May, not realizing they were chatting with undercover federal agents.