Amnesty International has held a protest outside the Egyptian Embassy in Dublin this evening, following the latest delay in the trial of Ibrahim Halawa.
Yesterday, the the trial of Irishman was delayed in Cairo for the 15th time.
He and 493 other accused are now due back in court on November 12th.
Mr Halawa, who is recognised as a prisoner of conscience by Amnesty International, has been held in prison for 1,142 days to date.
A statement issued by the solicitor representing his family said it had long been feared that the trial would not proceed due to its falling on an Egyptian holiday.
Darragh Mackin of KRW Law said: "This fact is wholly and entirely unacceptable bearing in mind Ibrahim has now been detained for three years and one month already, since he was a child aged 17, and with no sign of an imminent conclusion."
Mr Halawa is accused of taking part in an illegal protest after the ousting of Egypt's President Mohamed Morsi.
Speaking after yesterday's delay, Amnesty Ireland's Executive Director Colm O'Gorman said: "There is no credible evidence against Ibrahim, who faces and a mass trial alongside 493 other defendants. A mass trial simply cannot meet the standards required for a fair trial as defined under international human rights law."
