The trial of ousted Egyptian President Muhammad Morsi has been postponed until February 1.
Reports quote a judge as saying adverse weather conditions had prevented Morsi from traveling on January 8 from prison to court.
Morsi and 14 other Muslim Brotherhood figures are accused of inciting the killing of opposition protesters in December 2012.
They could face the death penalty or life in prison if found guilty.
Morsi became president in June 2012 through a democratic election. He was overthrown in July by the military following mass protests against his rule.
In the months since his ouster from office, hundreds of people have been killed and thousands detained in clashes between Islamist supporters of the president, who are demanding his reinstatement, and security forces.
On January 3, more than 10 people died in clashes between police and Morsi supporters across Egypt.
In November 2013, the trial was adjourned in the midst of its first session after disruptions in the courtroom by the defendants.
Based on reporting by AFP, AP, dpa, BBC, and Reuters