Amnesty International says it is 'deeply concerned' for the welfare of Ibrahim Halawa, whose trial has been adjourned until April.

The Dublin teenager was due to face a mass trial in Cairo yesterday - but his court date has now been delayed for a fifth time.

Mr Halawa (19) has been detained in an Egyptian prison for over 19 months, and if convicted could face the death penalty.

He and 493 other people are on trial for their alleged role in violence during protests that took place on August 16th and 17th 2013, in the Ramisis area of central Cairo.

At least 97 people died in the protests.

Amnesty International say Mr Halawa was shot in his hand when the security forces stormed the mosque where he was taking refuge with his three sisters - but that he was not given access to medical care for his injury.

Three judges who made up a court panel was due to hear the case against the 494 people - but recused themselves on account of objections raised by the defendants' lawyers.

The trial has now been postponed five times.

Colm O'Gorman, executive director of Amnesty International Ireland, says he believes Mr Halawa is at serious risk of torture in the prison he is being held in.

Meanwhile, the family of Mr Halawa are threatening to hold a protest outside the office of the foreign affairs minister at 1pm this afternoon if nothing is done.

Ibrahim's sister, Somaia, says she does not think the Irish government is doing enough despite the Department of Foreign Affairs stating that Ibrahim's welfare while in custody remains a 'primary concern'.