The first hostages freed from Gaza under a long-awaited ceasefire agreement are back in Israel, and desperately needed aid is beginning to flow into the enclave. Follow for live updates.

The ceasefire came into effect Sunday after an initial three-hour delay, during which almost 20 more Palestinians were killed, according to medics in the decimated Palestinian territory. Under the terms of the deal,

Israel has freed 90 Palestinian detainees in exchange for three Israeli hostages as the first stage of its ceasefire deal with Hamas.