A court in Egypt has ordered a retrial of Peter Greste, Mohamed Fahmy and Baher Mohamed, the three al-Jazeera journalists jailed on charges of spreading false news.
The decision was made after the hearing in Cairo of an appeal by the three against their conviction.
Prosecutors acknowledged major problems with the verdict, defence lawyers said. A new trial will occur within a month but the three must remain in custody.
Al-Jazeera called on the authorities to release its journalists quickly.
The journalists deny the charges, which included collaborating with the banned Muslim Brotherhood after the overthrow of President Mohammed Morsi by the military in 2013.
They say they were simply reporting the news.
Two of them are foreign nationals – Peter Greste, a former BBC correspondent, is Australian, and his producer colleague Mohammed Fahmy holds Egyptian and Canadian citizenship.
The three journalists were first arrested in December 2013 and have been in jail since then.
They were convicted in June – with Fahmy and Greste jailed for seven years and Mohamed for 10 years.