Judge Mustafa Hassan Abdullah said he was referring the trial to the Cairo appeals court as he felt "unease" in reviewing the case.

BBC: Ousted Egyptian President Hosni Mubarak's retrial starts

The retrial began on 13 April, but presiding Judge Mustafa Hassan Abdullah withdrew immediately, stating his "unease" about reviewing the case.

BBC: Egypt's Hosni Mubarak ordered back to prison

There were chaotic scenes on Saturday as the judge presiding over the retrial, Mustafa Hassan Abdullah, withdrew from the case citing his "unease" in overseeing the proceedings.

BBC: Egypt: Court gives Hosni Mubarak custody decision