Former Egyptian President Hosni Mubarak will stand trial again over the killing of protesters in 2011, an appeals court has ordered.

Hosni Mubarak, 87, was cleared in a retrial in November 2014 after originally being jailed for life over the death of 800 people during the revolution.

He was separately convicted of corruption and sentenced to three years in jail earlier this year.

Hosni Mubarak is currently in the Maadi military hospital in Cairo.

The judge at the Court of Cassation said Hosni Mubarak would be retried on November 5. It will be the third time the case has been heard.

Hosni Mubarak had been convicted of conspiracy to kill in June 2012, but a retrial was ordered on a technicality the following year.

The decision to drop the charges sparked protests, with demonstrators clashing with police near Tahrir Square.

Hosni Mubarak, who was in power for nearly 30 years, stepped down in February 2011 after mass protests against his rule.

The former president has faced a series of trials and retrials over the killings and corruption and the time he has spent in custody means he has already served his three-year jail term for embezzlement.