The family of slain 18-year-old Azzam Raguragui said they are “resting” their faith in the Irish justice system to hold the perpetrator of the attack to account.

Diplomatic efforts were continuing last night in a bid to ensure the safety of four Irish-Egyptian siblings who were among protestors arrested in Cairo at the weekend.

An Irish citizen caught up in the violence in Egypt told family here she was being beaten by security forces as she and her three siblings were removed from a mosque where they had taken refuge from fighting in the street.