Some 90 Palestinian detainees have been released as Israel's ceasefire deal with Hamas takes hold. Meanwhile, the World Health Organization has called for aid agencies to be given full access to Gaza.

Ramallah, West Bank — The first three hostages were released from Gaza and the first Palestinian prisoners were freed from Israeli custody as the fragile ceasefire between Israel and Hamas took hold following 15 months of war, with mixed emotions and more difficult steps ahead over the next six weeks.

A ceasefire in the Gaza Strip took effect on Sunday as Hamas released the first three female hostages it held for 15 months of the devastating war with Israel.