A delegation from the Palestinian militant group Hamas plans to travel to Cairo on Sunday for negotiations over a possible ceasefire in the Gaza Strip and the release of further hostages being held there. Broadcaster Al-Jazeera, citing Hamas sources, reported that mediators have recently been in close touch with Hamas political leader Ismail Haniyeh to urge a continuation of negotiations. Senior Hamas official Khalil al-Hayya will lead the delegation to Cairo, the group announced on Saturday. The statement said that Hamas would not deviate from its demands, including for a permanent ceasefire,…