The sister of Ibrahim Halawa - who has been detained with three of his siblings in Egypt for almost three months - says he may be kept in custody for another 45 days. 

Omaima, Somaia and Fatima were yesterday released from a Cairo prison - after being arrested for taking part in a protest at a mosque during unrest in August. 

17-year-old Ibrahim faces a further court appearance later today.

His sister Nusayba says she's delighted that she'll get to see her sisters again - but says the family are still very concerned for Ibrahim.