Hamas is set to release three Israeli hostages in the next ceasefire swap with Israel. The hostages have been in captivity for nearly 15 months and will be exchanged for 90 inmates in Israeli jails. The release is part of the fourth hostage-prisoner swap since the Gaza ceasefire began. So far, Hamas and Islamic Jihad militants have released 15 hostages in exchange for hundreds of Palestinian prisoners. The ceasefire has allowed for a surge of aid into Gaza, although Hamas has complained about the delivery of essential items.