Turkish diplomat meets Halawa family in Cairo prison 19 August 2013 Last updated at 21:37 A Turkish diplomat has met four Irish citizens being held by authorities in Egypt. The three young women and teenage boy are children of Hussein Halawa, the imam at Ireland's largest mosque in Dublin. Irish junior minister Joe Costello said the Turkish diplomat had met the four siblings in prison. "The situation has been changing very rapidly," Mr Costello said. As we understand, at the present time from a reliable source, a Turkish diplomat who was in the prison yesterday, met all four of the Halawa siblings and they said that they were in good form. They further told them that they would be taken to the prosecutor's office and then they would find out what the attitude of the Egyptian authorities are towards them. Their sister Nosayba Halawa said she still has grave concerns for their safety. "We are just wishing and hoping and praying that they will arrive back today or tomorrow," said Ms Halawa, at the family home in Firhouse, south Dublin. We have been told that they are safe but that doesn't mean they haven't been harmed or beaten. A spokesman for the Irish Department of Foreign Affairs said: "Officials are continuing with efforts to try to gain access to visit the siblings. We are in contact with the Egyptian authorities in that regard. The Halawas were among hundreds of people who sheltered in the al-Fath mosque on Friday night, during a stand-off between security forces and supporters of the Muslim Brotherhood. Morsi supporters have staged several protests, including barricading themselves into the al-Fath mosque. They said they had been arrested and their phones had been taken from them, but had managed to borrow a phone to contact family members in Dublin.