The trial of Egypt's deposed Islamist president Mohammed Morsi on charges of inciting the killing of protesters was adjourned on Wednesday to February 1 after bad weather prevented his transfer from prison to a Cairo court, dpa reported.
Heavy fog prevented a helicopter from transferring Morsi from a prison in the Mediterranean city of Alexandria to the trial venue near Cairo, reported state-run newspaper Al Ahram Online.
Morsi, Egypt's first democratically elected president, faces charges of inciting the killing of 10 opposition protesters in December 2012. He could face the death penalty if convicted.
Also charged are 14 other defendants from Morsi's administration and his Muslim Brotherhood group. The trial opened in November.
Security forces clashed with Morsi's backers, who gathered outside a mosque in the eastern Cairo district of Nasr City to protest his trial, said witnesses.
At least 10 Morsi supporters were arrested for holding a protest and torching a police car, they added. There were no reports of casualties.
Egyptian authorities outlawed Morsi's Muslim Brotherhood in September and declared it a terrorist group in December.
Under Egyptian law, terrorism-related charges carry the death penalty.
Morsi, who was deposed by the military in July, also faces two other trials on charges related to escaping from prison during the 2011 uprising that toppled Hosny Mubarak and sponsoring terrorism.
Morsi has said all the charges against him are politically motivated.