Cairo: An Egyptian court on Sunday adjourned a long-running trial of three Al Jazeera journalists for the tenth time.

The court in Cairo said a verdict in the case would now be delivered on August 29, Al Jazeera reported.

Egyptian Baher Mohamed, Canadian Mohamed Fahmy and Australian Peter Greste were found guilty in June 2014 of aiding the Muslim Brotherhood, which was outlawed in Egypt after the army overthrew president Mohamed Morsi in 2013.

Greste and Fahmy received seven years jail term, while Mohamed was given 10 years.

After the announcement that the trial had once again been adjourned, Greste described the situation as "frustrating as hell".

"Verdict postponed until August 29th The audacity and continuous disrespect to our rights is unprecedented! #FreeAJStaff," Fahmy tweeted.

Greste has already been deported to Australia under a law allowing the transfer of foreigners on trial to their home countries but he is still being retried in absentia. Fahmy and Mohamed were freed on bail in February after spending more than 400 days in detention.

Fahmy has renounced his Egyptian nationality hoping he too would be deported.